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Finding the Fourth Proportional to 298,937.69, 448,408.16 and 88,577.45

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Solution

The fourth proportional to 298,937.69, 448,408.16 and 88,577.45 is: 132,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,937.69 : 448,408.16 = 88,577.45 : x
  2. Step 2: Convert to fraction form
    298,937.69/448,408.16 = 88,577.45/x
  3. Step 3: Cross multiply
    298,937.69x = 448,408.16 × 88,577.45
  4. Step 4: Simplify right side
    298,937.69x = 39,718,850,929.10
  5. Step 5: Solve for x
    x = 39,718,850,929.10/298,937.69
  6. Step 6: Final answer
    x = 132,866.66

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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.