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Finding the Fourth Proportional to 299,126.80, 412,804.20 and 171,827.92

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Solution

The fourth proportional to 299,126.80, 412,804.20 and 171,827.92 is: 237,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,126.80 : 412,804.20 = 171,827.92 : x
  2. Step 2: Convert to fraction form
    299,126.80/412,804.20 = 171,827.92/x
  3. Step 3: Cross multiply
    299,126.80x = 412,804.20 × 171,827.92
  4. Step 4: Simplify right side
    299,126.80x = 70,931,287,053.26
  5. Step 5: Solve for x
    x = 70,931,287,053.26/299,126.80
  6. Step 6: Final answer
    x = 237,127.82

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1.5x scale

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.