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Finding the Fourth Proportional to 475,394.40, 712,940.99 and 155,472.35

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Solution

The fourth proportional to 475,394.40, 712,940.99 and 155,472.35 is: 233,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,394.40 : 712,940.99 = 155,472.35 : x
  2. Step 2: Convert to fraction form
    475,394.40/712,940.99 = 155,472.35/x
  3. Step 3: Cross multiply
    475,394.40x = 712,940.99 × 155,472.35
  4. Step 4: Simplify right side
    475,394.40x = 110,842,606,784.56
  5. Step 5: Solve for x
    x = 110,842,606,784.56/475,394.40
  6. Step 6: Final answer
    x = 233,159.26

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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.