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Finding the Fourth Proportional to 403,399.80, 556,691.72 and 224,551.80

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Solution

The fourth proportional to 403,399.80, 556,691.72 and 224,551.80 is: 309,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,399.80 : 556,691.72 = 224,551.80 : x
  2. Step 2: Convert to fraction form
    403,399.80/556,691.72 = 224,551.80/x
  3. Step 3: Cross multiply
    403,399.80x = 556,691.72 × 224,551.80
  4. Step 4: Simplify right side
    403,399.80x = 125,006,126,648.34
  5. Step 5: Solve for x
    x = 125,006,126,648.34/403,399.80
  6. Step 6: Final answer
    x = 309,881.48

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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.