Home / 287,298.28-430,951.65-109,814.71

Finding the Fourth Proportional to 287,298.28, 430,951.65 and 109,814.71

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Solution

The fourth proportional to 287,298.28, 430,951.65 and 109,814.71 is: 164,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,298.28 : 430,951.65 = 109,814.71 : x
  2. Step 2: Convert to fraction form
    287,298.28/430,951.65 = 109,814.71/x
  3. Step 3: Cross multiply
    287,298.28x = 430,951.65 × 109,814.71
  4. Step 4: Simplify right side
    287,298.28x = 47,324,830,468.77
  5. Step 5: Solve for x
    x = 47,324,830,468.77/287,298.28
  6. Step 6: Final answer
    x = 164,723.68

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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.