Home / 278,982.95-385,000.76-151,659.05

Finding the Fourth Proportional to 278,982.95, 385,000.76 and 151,659.05

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Solution

The fourth proportional to 278,982.95, 385,000.76 and 151,659.05 is: 209,291.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,982.95 : 385,000.76 = 151,659.05 : x
  2. Step 2: Convert to fraction form
    278,982.95/385,000.76 = 151,659.05/x
  3. Step 3: Cross multiply
    278,982.95x = 385,000.76 × 151,659.05
  4. Step 4: Simplify right side
    278,982.95x = 58,388,847,965.02
  5. Step 5: Solve for x
    x = 58,388,847,965.02/278,982.95
  6. Step 6: Final answer
    x = 209,291.82

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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.