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Finding the Fourth Proportional to 371,174.72, 556,762.08 and 90,691.52

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Solution

The fourth proportional to 371,174.72, 556,762.08 and 90,691.52 is: 136,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,174.72 : 556,762.08 = 90,691.52 : x
  2. Step 2: Convert to fraction form
    371,174.72/556,762.08 = 90,691.52/x
  3. Step 3: Cross multiply
    371,174.72x = 556,762.08 × 90,691.52
  4. Step 4: Simplify right side
    371,174.72x = 50,493,599,313.56
  5. Step 5: Solve for x
    x = 50,493,599,313.56/371,174.72
  6. Step 6: Final answer
    x = 136,037.28

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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.