Home / 654,119.08-981,178.63-204,875.10

Finding the Fourth Proportional to 654,119.08, 981,178.63 and 204,875.10

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Solution

The fourth proportional to 654,119.08, 981,178.63 and 204,875.10 is: 307,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,119.08 : 981,178.63 = 204,875.10 : x
  2. Step 2: Convert to fraction form
    654,119.08/981,178.63 = 204,875.10/x
  3. Step 3: Cross multiply
    654,119.08x = 981,178.63 × 204,875.10
  4. Step 4: Simplify right side
    654,119.08x = 201,019,069,939.11
  5. Step 5: Solve for x
    x = 201,019,069,939.11/654,119.08
  6. Step 6: Final answer
    x = 307,312.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.