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Finding the Fourth Proportional to 652,159.10, 978,238.65 and 231,380.30

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Solution

The fourth proportional to 652,159.10, 978,238.65 and 231,380.30 is: 347,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,159.10 : 978,238.65 = 231,380.30 : x
  2. Step 2: Convert to fraction form
    652,159.10/978,238.65 = 231,380.30/x
  3. Step 3: Cross multiply
    652,159.10x = 978,238.65 × 231,380.30
  4. Step 4: Simplify right side
    652,159.10x = 226,345,152,308.60
  5. Step 5: Solve for x
    x = 226,345,152,308.60/652,159.10
  6. Step 6: Final answer
    x = 347,070.45

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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.