Home / 278,468.88-384,306.02-157,609.72

Finding the Fourth Proportional to 278,468.88, 384,306.02 and 157,609.72

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Solution

The fourth proportional to 278,468.88, 384,306.02 and 157,609.72 is: 217,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,468.88 : 384,306.02 = 157,609.72 : x
  2. Step 2: Convert to fraction form
    278,468.88/384,306.02 = 157,609.72/x
  3. Step 3: Cross multiply
    278,468.88x = 384,306.02 × 157,609.72
  4. Step 4: Simplify right side
    278,468.88x = 60,570,364,206.51
  5. Step 5: Solve for x
    x = 60,570,364,206.51/278,468.88
  6. Step 6: Final answer
    x = 217,512.15

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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.