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Finding the Fourth Proportional to 472,348.04, 708,449 and 172,758.55

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Solution

The fourth proportional to 472,348.04, 708,449 and 172,758.55 is: 259,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,348.04 : 708,449 = 172,758.55 : x
  2. Step 2: Convert to fraction form
    472,348.04/708,449 = 172,758.55/x
  3. Step 3: Cross multiply
    472,348.04x = 708,449 × 172,758.55
  4. Step 4: Simplify right side
    472,348.04x = 122,390,621,988.95
  5. Step 5: Solve for x
    x = 122,390,621,988.95/472,348.04
  6. Step 6: Final answer
    x = 259,111.11

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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.