Home / 578,213.80-867,288.30-178,851.40

Finding the Fourth Proportional to 578,213.80, 867,288.30 and 178,851.40

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Solution

The fourth proportional to 578,213.80, 867,288.30 and 178,851.40 is: 268,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,213.80 : 867,288.30 = 178,851.40 : x
  2. Step 2: Convert to fraction form
    578,213.80/867,288.30 = 178,851.40/x
  3. Step 3: Cross multiply
    578,213.80x = 867,288.30 × 178,851.40
  4. Step 4: Simplify right side
    578,213.80x = 155,115,726,658.62
  5. Step 5: Solve for x
    x = 155,115,726,658.62/578,213.80
  6. Step 6: Final answer
    x = 268,267.08

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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.