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Finding the Fourth Proportional to 298,980.70, 448,317.15 and 88,591.30

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Solution

The fourth proportional to 298,980.70, 448,317.15 and 88,591.30 is: 132,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,980.70 : 448,317.15 = 88,591.30 : x
  2. Step 2: Convert to fraction form
    298,980.70/448,317.15 = 88,591.30/x
  3. Step 3: Cross multiply
    298,980.70x = 448,317.15 × 88,591.30
  4. Step 4: Simplify right side
    298,980.70x = 39,716,999,130.80
  5. Step 5: Solve for x
    x = 39,716,999,130.80/298,980.70
  6. Step 6: Final answer
    x = 132,841.35

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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.