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Finding the Fourth Proportional to 472,705.20, 652,309.20 and 257,843.52

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Solution

The fourth proportional to 472,705.20, 652,309.20 and 257,843.52 is: 355,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,705.20 : 652,309.20 = 257,843.52 : x
  2. Step 2: Convert to fraction form
    472,705.20/652,309.20 = 257,843.52/x
  3. Step 3: Cross multiply
    472,705.20x = 652,309.20 × 257,843.52
  4. Step 4: Simplify right side
    472,705.20x = 168,193,700,256.38
  5. Step 5: Solve for x
    x = 168,193,700,256.38/472,705.20
  6. Step 6: Final answer
    x = 355,810.98

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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.