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Finding the Fourth Proportional to 331,957.80, 498,182.74 and 243,384.30

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Solution

The fourth proportional to 331,957.80, 498,182.74 and 243,384.30 is: 365,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,957.80 : 498,182.74 = 243,384.30 : x
  2. Step 2: Convert to fraction form
    331,957.80/498,182.74 = 243,384.30/x
  3. Step 3: Cross multiply
    331,957.80x = 498,182.74 × 243,384.30
  4. Step 4: Simplify right side
    331,957.80x = 121,249,856,838.52
  5. Step 5: Solve for x
    x = 121,249,856,838.52/331,957.80
  6. Step 6: Final answer
    x = 365,256.84

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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.