Home / 278,274.18-384,018.50-157,412.94

Finding the Fourth Proportional to 278,274.18, 384,018.50 and 157,412.94

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Solution

The fourth proportional to 278,274.18, 384,018.50 and 157,412.94 is: 217,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,274.18 : 384,018.50 = 157,412.94 : x
  2. Step 2: Convert to fraction form
    278,274.18/384,018.50 = 157,412.94/x
  3. Step 3: Cross multiply
    278,274.18x = 384,018.50 × 157,412.94
  4. Step 4: Simplify right side
    278,274.18x = 60,449,480,052.85
  5. Step 5: Solve for x
    x = 60,449,480,052.85/278,274.18
  6. Step 6: Final answer
    x = 217,229.92

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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.