Home / 458,298.38-687,455.28-158,787.77

Finding the Fourth Proportional to 458,298.38, 687,455.28 and 158,787.77

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Solution

The fourth proportional to 458,298.38, 687,455.28 and 158,787.77 is: 238,184.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,298.38 : 687,455.28 = 158,787.77 : x
  2. Step 2: Convert to fraction form
    458,298.38/687,455.28 = 158,787.77/x
  3. Step 3: Cross multiply
    458,298.38x = 687,455.28 × 158,787.77
  4. Step 4: Simplify right side
    458,298.38x = 109,159,490,885.93
  5. Step 5: Solve for x
    x = 109,159,490,885.93/458,298.38
  6. Step 6: Final answer
    x = 238,184.33

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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.