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Finding the Fourth Proportional to 242,940.80, 364,265.40 and 124,842.80

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Solution

The fourth proportional to 242,940.80, 364,265.40 and 124,842.80 is: 187,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,940.80 : 364,265.40 = 124,842.80 : x
  2. Step 2: Convert to fraction form
    242,940.80/364,265.40 = 124,842.80/x
  3. Step 3: Cross multiply
    242,940.80x = 364,265.40 × 124,842.80
  4. Step 4: Simplify right side
    242,940.80x = 45,475,912,479.12
  5. Step 5: Solve for x
    x = 45,475,912,479.12/242,940.80
  6. Step 6: Final answer
    x = 187,189.28

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1.5x scale

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.