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Finding the Fourth Proportional to 308,282.28, 425,429.40 and 180,957.87

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Solution

The fourth proportional to 308,282.28, 425,429.40 and 180,957.87 is: 249,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,282.28 : 425,429.40 = 180,957.87 : x
  2. Step 2: Convert to fraction form
    308,282.28/425,429.40 = 180,957.87/x
  3. Step 3: Cross multiply
    308,282.28x = 425,429.40 × 180,957.87
  4. Step 4: Simplify right side
    308,282.28x = 76,984,798,059.38
  5. Step 5: Solve for x
    x = 76,984,798,059.38/308,282.28
  6. Step 6: Final answer
    x = 249,721.77

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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.