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Finding the Fourth Proportional to 278,566.90, 417,159.15 and 223,270.90

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Solution

The fourth proportional to 278,566.90, 417,159.15 and 223,270.90 is: 334,352.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,566.90 : 417,159.15 = 223,270.90 : x
  2. Step 2: Convert to fraction form
    278,566.90/417,159.15 = 223,270.90/x
  3. Step 3: Cross multiply
    278,566.90x = 417,159.15 × 223,270.90
  4. Step 4: Simplify right side
    278,566.90x = 93,139,498,863.74
  5. Step 5: Solve for x
    x = 93,139,498,863.74/278,566.90
  6. Step 6: Final answer
    x = 334,352.35

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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.