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Finding the Fourth Proportional to 375,068.72, 517,429.80 and 224,078

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Solution

The fourth proportional to 375,068.72, 517,429.80 and 224,078 is: 309,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,068.72 : 517,429.80 = 224,078 : x
  2. Step 2: Convert to fraction form
    375,068.72/517,429.80 = 224,078/x
  3. Step 3: Cross multiply
    375,068.72x = 517,429.80 × 224,078
  4. Step 4: Simplify right side
    375,068.72x = 115,944,634,724.40
  5. Step 5: Solve for x
    x = 115,944,634,724.40/375,068.72
  6. Step 6: Final answer
    x = 309,129.04

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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.