Home / 278,278.20-384,024.03-157,416.94

Finding the Fourth Proportional to 278,278.20, 384,024.03 and 157,416.94

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Solution

The fourth proportional to 278,278.20, 384,024.03 and 157,416.94 is: 217,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,278.20 : 384,024.03 = 157,416.94 : x
  2. Step 2: Convert to fraction form
    278,278.20/384,024.03 = 157,416.94/x
  3. Step 3: Cross multiply
    278,278.20x = 384,024.03 × 157,416.94
  4. Step 4: Simplify right side
    278,278.20x = 60,451,887,689.07
  5. Step 5: Solve for x
    x = 60,451,887,689.07/278,278.20
  6. Step 6: Final answer
    x = 217,235.44

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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.