Home / 279,609.64-385,865.66-152,285.12

Finding the Fourth Proportional to 279,609.64, 385,865.66 and 152,285.12

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Solution

The fourth proportional to 279,609.64, 385,865.66 and 152,285.12 is: 210,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,609.64 : 385,865.66 = 152,285.12 : x
  2. Step 2: Convert to fraction form
    279,609.64/385,865.66 = 152,285.12/x
  3. Step 3: Cross multiply
    279,609.64x = 385,865.66 × 152,285.12
  4. Step 4: Simplify right side
    279,609.64x = 58,761,598,336.98
  5. Step 5: Solve for x
    x = 58,761,598,336.98/279,609.64
  6. Step 6: Final answer
    x = 210,155.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.