Home / 578,082.60-867,188.70-178,720.20

Finding the Fourth Proportional to 578,082.60, 867,188.70 and 178,720.20

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Solution

The fourth proportional to 578,082.60, 867,188.70 and 178,720.20 is: 268,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,082.60 : 867,188.70 = 178,720.20 : x
  2. Step 2: Convert to fraction form
    578,082.60/867,188.70 = 178,720.20/x
  3. Step 3: Cross multiply
    578,082.60x = 867,188.70 × 178,720.20
  4. Step 4: Simplify right side
    578,082.60x = 154,984,137,901.74
  5. Step 5: Solve for x
    x = 154,984,137,901.74/578,082.60
  6. Step 6: Final answer
    x = 268,100.33

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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.