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Finding the Fourth Proportional to 372,254.52, 513,802.50 and 211,203.84

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Solution

The fourth proportional to 372,254.52, 513,802.50 and 211,203.84 is: 291,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,254.52 : 513,802.50 = 211,203.84 : x
  2. Step 2: Convert to fraction form
    372,254.52/513,802.50 = 211,203.84/x
  3. Step 3: Cross multiply
    372,254.52x = 513,802.50 × 211,203.84
  4. Step 4: Simplify right side
    372,254.52x = 108,517,061,001.60
  5. Step 5: Solve for x
    x = 108,517,061,001.60/372,254.52
  6. Step 6: Final answer
    x = 291,513.08

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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.