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Finding the Fourth Proportional to 488,267.30, 732,510.30 and 188,721.20

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Solution

The fourth proportional to 488,267.30, 732,510.30 and 188,721.20 is: 283,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,267.30 : 732,510.30 = 188,721.20 : x
  2. Step 2: Convert to fraction form
    488,267.30/732,510.30 = 188,721.20/x
  3. Step 3: Cross multiply
    488,267.30x = 732,510.30 × 188,721.20
  4. Step 4: Simplify right side
    488,267.30x = 138,240,222,828.36
  5. Step 5: Solve for x
    x = 138,240,222,828.36/488,267.30
  6. Step 6: Final answer
    x = 283,124.07

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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.