Home / 287,166.25-430,753.02-100,177.75

Finding the Fourth Proportional to 287,166.25, 430,753.02 and 100,177.75

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Solution

The fourth proportional to 287,166.25, 430,753.02 and 100,177.75 is: 150,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,166.25 : 430,753.02 = 100,177.75 : x
  2. Step 2: Convert to fraction form
    287,166.25/430,753.02 = 100,177.75/x
  3. Step 3: Cross multiply
    287,166.25x = 430,753.02 × 100,177.75
  4. Step 4: Simplify right side
    287,166.25x = 43,151,868,349.31
  5. Step 5: Solve for x
    x = 43,151,868,349.31/287,166.25
  6. Step 6: Final answer
    x = 150,267.90

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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.