Home / 218,784.13-328,176.17-52,572.13

Finding the Fourth Proportional to 218,784.13, 328,176.17 and 52,572.13

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Solution

The fourth proportional to 218,784.13, 328,176.17 and 52,572.13 is: 78,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,784.13 : 328,176.17 = 52,572.13 : x
  2. Step 2: Convert to fraction form
    218,784.13/328,176.17 = 52,572.13/x
  3. Step 3: Cross multiply
    218,784.13x = 328,176.17 × 52,572.13
  4. Step 4: Simplify right side
    218,784.13x = 17,252,920,272.14
  5. Step 5: Solve for x
    x = 17,252,920,272.14/218,784.13
  6. Step 6: Final answer
    x = 78,858.19

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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.