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Finding the Fourth Proportional to 367,640.80, 551,461.20 and 101,442.40

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Solution

The fourth proportional to 367,640.80, 551,461.20 and 101,442.40 is: 152,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,640.80 : 551,461.20 = 101,442.40 : x
  2. Step 2: Convert to fraction form
    367,640.80/551,461.20 = 101,442.40/x
  3. Step 3: Cross multiply
    367,640.80x = 551,461.20 × 101,442.40
  4. Step 4: Simplify right side
    367,640.80x = 55,941,547,634.88
  5. Step 5: Solve for x
    x = 55,941,547,634.88/367,640.80
  6. Step 6: Final answer
    x = 152,163.60

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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.