Home / 287,236.08-430,883.60-109,892.28

Finding the Fourth Proportional to 287,236.08, 430,883.60 and 109,892.28

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Solution

The fourth proportional to 287,236.08, 430,883.60 and 109,892.28 is: 164,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,236.08 : 430,883.60 = 109,892.28 : x
  2. Step 2: Convert to fraction form
    287,236.08/430,883.60 = 109,892.28/x
  3. Step 3: Cross multiply
    287,236.08x = 430,883.60 × 109,892.28
  4. Step 4: Simplify right side
    287,236.08x = 47,350,781,218.61
  5. Step 5: Solve for x
    x = 47,350,781,218.61/287,236.08
  6. Step 6: Final answer
    x = 164,849.70

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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.