Home / 279,303.19-385,440.22-151,979.69

Finding the Fourth Proportional to 279,303.19, 385,440.22 and 151,979.69

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Solution

The fourth proportional to 279,303.19, 385,440.22 and 151,979.69 is: 209,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,303.19 : 385,440.22 = 151,979.69 : x
  2. Step 2: Convert to fraction form
    279,303.19/385,440.22 = 151,979.69/x
  3. Step 3: Cross multiply
    279,303.19x = 385,440.22 × 151,979.69
  4. Step 4: Simplify right side
    279,303.19x = 58,579,086,302.71
  5. Step 5: Solve for x
    x = 58,579,086,302.71/279,303.19
  6. Step 6: Final answer
    x = 209,732.97

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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.