Home / 279,488.97-385,701.75-152,171.55

Finding the Fourth Proportional to 279,488.97, 385,701.75 and 152,171.55

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Solution

The fourth proportional to 279,488.97, 385,701.75 and 152,171.55 is: 210,000.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,488.97 : 385,701.75 = 152,171.55 : x
  2. Step 2: Convert to fraction form
    279,488.97/385,701.75 = 152,171.55/x
  3. Step 3: Cross multiply
    279,488.97x = 385,701.75 × 152,171.55
  4. Step 4: Simplify right side
    279,488.97x = 58,692,833,135.21
  5. Step 5: Solve for x
    x = 58,692,833,135.21/279,488.97
  6. Step 6: Final answer
    x = 210,000.53

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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.