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Finding the Fourth Proportional to 578,148.80, 867,374.40 and 223,174.40

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Solution

The fourth proportional to 578,148.80, 867,374.40 and 223,174.40 is: 334,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,148.80 : 867,374.40 = 223,174.40 : x
  2. Step 2: Convert to fraction form
    578,148.80/867,374.40 = 223,174.40/x
  3. Step 3: Cross multiply
    578,148.80x = 867,374.40 × 223,174.40
  4. Step 4: Simplify right side
    578,148.80x = 193,575,761,295.36
  5. Step 5: Solve for x
    x = 193,575,761,295.36/578,148.80
  6. Step 6: Final answer
    x = 334,819.97

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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.