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Finding the Fourth Proportional to 187,988.80, 282,021.60 and 63,342.40

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Solution

The fourth proportional to 187,988.80, 282,021.60 and 63,342.40 is: 95,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,988.80 : 282,021.60 = 63,342.40 : x
  2. Step 2: Convert to fraction form
    187,988.80/282,021.60 = 63,342.40/x
  3. Step 3: Cross multiply
    187,988.80x = 282,021.60 × 63,342.40
  4. Step 4: Simplify right side
    187,988.80x = 17,863,924,995.84
  5. Step 5: Solve for x
    x = 17,863,924,995.84/187,988.80
  6. Step 6: Final answer
    x = 95,026.54

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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.