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Finding the Fourth Proportional to 298,389.65, 447,655.55 and 88,027.79

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Solution

The fourth proportional to 298,389.65, 447,655.55 and 88,027.79 is: 132,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,389.65 : 447,655.55 = 88,027.79 : x
  2. Step 2: Convert to fraction form
    298,389.65/447,655.55 = 88,027.79/x
  3. Step 3: Cross multiply
    298,389.65x = 447,655.55 × 88,027.79
  4. Step 4: Simplify right side
    298,389.65x = 39,406,126,069.32
  5. Step 5: Solve for x
    x = 39,406,126,069.32/298,389.65
  6. Step 6: Final answer
    x = 132,062.65

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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.