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Finding the Fourth Proportional to 472,781.66, 652,427.73 and 257,929.29

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Solution

The fourth proportional to 472,781.66, 652,427.73 and 257,929.29 is: 355,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,781.66 : 652,427.73 = 257,929.29 : x
  2. Step 2: Convert to fraction form
    472,781.66/652,427.73 = 257,929.29/x
  3. Step 3: Cross multiply
    472,781.66x = 652,427.73 × 257,929.29
  4. Step 4: Simplify right side
    472,781.66x = 168,280,221,175.21
  5. Step 5: Solve for x
    x = 168,280,221,175.21/472,781.66
  6. Step 6: Final answer
    x = 355,936.44

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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.