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Finding the Fourth Proportional to 465,191.52, 642,048.08 and 274,193.76

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Solution

The fourth proportional to 465,191.52, 642,048.08 and 274,193.76 is: 378,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,191.52 : 642,048.08 = 274,193.76 : x
  2. Step 2: Convert to fraction form
    465,191.52/642,048.08 = 274,193.76/x
  3. Step 3: Cross multiply
    465,191.52x = 642,048.08 × 274,193.76
  4. Step 4: Simplify right side
    465,191.52x = 176,045,577,155.98
  5. Step 5: Solve for x
    x = 176,045,577,155.98/465,191.52
  6. Step 6: Final answer
    x = 378,436.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.