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Finding the Fourth Proportional to 260,992.08, 391,482.78 and 83,499.06

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Solution

The fourth proportional to 260,992.08, 391,482.78 and 83,499.06 is: 125,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,992.08 : 391,482.78 = 83,499.06 : x
  2. Step 2: Convert to fraction form
    260,992.08/391,482.78 = 83,499.06/x
  3. Step 3: Cross multiply
    260,992.08x = 391,482.78 × 83,499.06
  4. Step 4: Simplify right side
    260,992.08x = 32,688,444,136.19
  5. Step 5: Solve for x
    x = 32,688,444,136.19/260,992.08
  6. Step 6: Final answer
    x = 125,246.88

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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.