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Finding the Fourth Proportional to 242,860.70, 364,291.05 and 172,001.90

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Solution

The fourth proportional to 242,860.70, 364,291.05 and 172,001.90 is: 258,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,860.70 : 364,291.05 = 172,001.90 : x
  2. Step 2: Convert to fraction form
    242,860.70/364,291.05 = 172,001.90/x
  3. Step 3: Cross multiply
    242,860.70x = 364,291.05 × 172,001.90
  4. Step 4: Simplify right side
    242,860.70x = 62,658,752,753.00
  5. Step 5: Solve for x
    x = 62,658,752,753.00/242,860.70
  6. Step 6: Final answer
    x = 258,002.85

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1.5x scale

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.