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Finding the Fourth Proportional to 308,322.72, 425,307.92 and 180,973.71

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Solution

The fourth proportional to 308,322.72, 425,307.92 and 180,973.71 is: 249,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,322.72 : 425,307.92 = 180,973.71 : x
  2. Step 2: Convert to fraction form
    308,322.72/425,307.92 = 180,973.71/x
  3. Step 3: Cross multiply
    308,322.72x = 425,307.92 × 180,973.71
  4. Step 4: Simplify right side
    308,322.72x = 76,969,551,269.91
  5. Step 5: Solve for x
    x = 76,969,551,269.91/308,322.72
  6. Step 6: Final answer
    x = 249,639.57

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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.