Home / 336,909.28-505,001.04-178,978.72

Finding the Fourth Proportional to 336,909.28, 505,001.04 and 178,978.72

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Solution

The fourth proportional to 336,909.28, 505,001.04 and 178,978.72 is: 268,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,909.28 : 505,001.04 = 178,978.72 : x
  2. Step 2: Convert to fraction form
    336,909.28/505,001.04 = 178,978.72/x
  3. Step 3: Cross multiply
    336,909.28x = 505,001.04 × 178,978.72
  4. Step 4: Simplify right side
    336,909.28x = 90,384,439,737.87
  5. Step 5: Solve for x
    x = 90,384,439,737.87/336,909.28
  6. Step 6: Final answer
    x = 268,275.30

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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.