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Finding the Fourth Proportional to 243,182.13, 364,834.35 and 172,243.68

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Solution

The fourth proportional to 243,182.13, 364,834.35 and 172,243.68 is: 258,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,182.13 : 364,834.35 = 172,243.68 : x
  2. Step 2: Convert to fraction form
    243,182.13/364,834.35 = 172,243.68/x
  3. Step 3: Cross multiply
    243,182.13x = 364,834.35 × 172,243.68
  4. Step 4: Simplify right side
    243,182.13x = 62,840,411,034.41
  5. Step 5: Solve for x
    x = 62,840,411,034.41/243,182.13
  6. Step 6: Final answer
    x = 258,408.84

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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.