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Finding the Fourth Proportional to 281,691.29, 388,730.67 and 152,627.24

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Solution

The fourth proportional to 281,691.29, 388,730.67 and 152,627.24 is: 210,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,691.29 : 388,730.67 = 152,627.24 : x
  2. Step 2: Convert to fraction form
    281,691.29/388,730.67 = 152,627.24/x
  3. Step 3: Cross multiply
    281,691.29x = 388,730.67 × 152,627.24
  4. Step 4: Simplify right side
    281,691.29x = 59,330,889,265.45
  5. Step 5: Solve for x
    x = 59,330,889,265.45/281,691.29
  6. Step 6: Final answer
    x = 210,623.80

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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.