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Finding the Fourth Proportional to 245,520.98, 368,297.04 and 77,047.95

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Solution

The fourth proportional to 245,520.98, 368,297.04 and 77,047.95 is: 115,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,520.98 : 368,297.04 = 77,047.95 : x
  2. Step 2: Convert to fraction form
    245,520.98/368,297.04 = 77,047.95/x
  3. Step 3: Cross multiply
    245,520.98x = 368,297.04 × 77,047.95
  4. Step 4: Simplify right side
    245,520.98x = 28,376,533,593.11
  5. Step 5: Solve for x
    x = 28,376,533,593.11/245,520.98
  6. Step 6: Final answer
    x = 115,576.82

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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.