Home / 578,353.15-867,431.31-157,530.61

Finding the Fourth Proportional to 578,353.15, 867,431.31 and 157,530.61

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Solution

The fourth proportional to 578,353.15, 867,431.31 and 157,530.61 is: 236,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,353.15 : 867,431.31 = 157,530.61 : x
  2. Step 2: Convert to fraction form
    578,353.15/867,431.31 = 157,530.61/x
  3. Step 3: Cross multiply
    578,353.15x = 867,431.31 × 157,530.61
  4. Step 4: Simplify right side
    578,353.15x = 136,646,983,397.40
  5. Step 5: Solve for x
    x = 136,646,983,397.40/578,353.15
  6. Step 6: Final answer
    x = 236,269.11

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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.