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Finding the Fourth Proportional to 171,812.20, 257,718.30 and 101,655.40

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Solution

The fourth proportional to 171,812.20, 257,718.30 and 101,655.40 is: 152,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,812.20 : 257,718.30 = 101,655.40 : x
  2. Step 2: Convert to fraction form
    171,812.20/257,718.30 = 101,655.40/x
  3. Step 3: Cross multiply
    171,812.20x = 257,718.30 × 101,655.40
  4. Step 4: Simplify right side
    171,812.20x = 26,198,456,873.82
  5. Step 5: Solve for x
    x = 26,198,456,873.82/171,812.20
  6. Step 6: Final answer
    x = 152,483.10

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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.