Home / 279,154.15-385,229.12-151,829.74

Finding the Fourth Proportional to 279,154.15, 385,229.12 and 151,829.74

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Solution

The fourth proportional to 279,154.15, 385,229.12 and 151,829.74 is: 209,523.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,154.15 : 385,229.12 = 151,829.74 : x
  2. Step 2: Convert to fraction form
    279,154.15/385,229.12 = 151,829.74/x
  3. Step 3: Cross multiply
    279,154.15x = 385,229.12 × 151,829.74
  4. Step 4: Simplify right side
    279,154.15x = 58,489,236,852.42
  5. Step 5: Solve for x
    x = 58,489,236,852.42/279,154.15
  6. Step 6: Final answer
    x = 209,523.08

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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.