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Finding the Fourth Proportional to 373,280.49, 515,104.88 and 212,113.17

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Solution

The fourth proportional to 373,280.49, 515,104.88 and 212,113.17 is: 292,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,280.49 : 515,104.88 = 212,113.17 : x
  2. Step 2: Convert to fraction form
    373,280.49/515,104.88 = 212,113.17/x
  3. Step 3: Cross multiply
    373,280.49x = 515,104.88 × 212,113.17
  4. Step 4: Simplify right side
    373,280.49x = 109,260,528,979.27
  5. Step 5: Solve for x
    x = 109,260,528,979.27/373,280.49
  6. Step 6: Final answer
    x = 292,703.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.