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Finding the Fourth Proportional to 372,654.81, 514,310.11 and 211,562.01

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Solution

The fourth proportional to 372,654.81, 514,310.11 and 211,562.01 is: 291,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,654.81 : 514,310.11 = 211,562.01 : x
  2. Step 2: Convert to fraction form
    372,654.81/514,310.11 = 211,562.01/x
  3. Step 3: Cross multiply
    372,654.81x = 514,310.11 × 211,562.01
  4. Step 4: Simplify right side
    372,654.81x = 108,808,480,106.02
  5. Step 5: Solve for x
    x = 108,808,480,106.02/372,654.81
  6. Step 6: Final answer
    x = 291,981.96

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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.