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Finding the Fourth Proportional to 272,062, 408,116.52 and 75,070

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Solution

The fourth proportional to 272,062, 408,116.52 and 75,070 is: 112,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,062 : 408,116.52 = 75,070 : x
  2. Step 2: Convert to fraction form
    272,062/408,116.52 = 75,070/x
  3. Step 3: Cross multiply
    272,062x = 408,116.52 × 75,070
  4. Step 4: Simplify right side
    272,062x = 30,637,307,156.40
  5. Step 5: Solve for x
    x = 30,637,307,156.40/272,062
  6. Step 6: Final answer
    x = 112,611.49

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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.