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Finding the Fourth Proportional to 324,807.83, 487,354.17 and 154,152.80

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Solution

The fourth proportional to 324,807.83, 487,354.17 and 154,152.80 is: 231,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,807.83 : 487,354.17 = 154,152.80 : x
  2. Step 2: Convert to fraction form
    324,807.83/487,354.17 = 154,152.80/x
  3. Step 3: Cross multiply
    324,807.83x = 487,354.17 × 154,152.80
  4. Step 4: Simplify right side
    324,807.83x = 75,127,009,866.06
  5. Step 5: Solve for x
    x = 75,127,009,866.06/324,807.83
  6. Step 6: Final answer
    x = 231,296.80

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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.