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Finding the Fourth Proportional to 508,282.68, 762,429.49 and 153,299.78

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Solution

The fourth proportional to 508,282.68, 762,429.49 and 153,299.78 is: 229,951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,282.68 : 762,429.49 = 153,299.78 : x
  2. Step 2: Convert to fraction form
    508,282.68/762,429.49 = 153,299.78/x
  3. Step 3: Cross multiply
    508,282.68x = 762,429.49 × 153,299.78
  4. Step 4: Simplify right side
    508,282.68x = 116,880,273,082.51
  5. Step 5: Solve for x
    x = 116,880,273,082.51/508,282.68
  6. Step 6: Final answer
    x = 229,951.32

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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.