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Finding the Fourth Proportional to 260,993.08, 391,484.28 and 83,500.06

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Solution

The fourth proportional to 260,993.08, 391,484.28 and 83,500.06 is: 125,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,993.08 : 391,484.28 = 83,500.06 : x
  2. Step 2: Convert to fraction form
    260,993.08/391,484.28 = 83,500.06/x
  3. Step 3: Cross multiply
    260,993.08x = 391,484.28 × 83,500.06
  4. Step 4: Simplify right side
    260,993.08x = 32,688,960,869.06
  5. Step 5: Solve for x
    x = 32,688,960,869.06/260,993.08
  6. Step 6: Final answer
    x = 125,248.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.