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Finding the Fourth Proportional to 172,187.02, 258,283.15 and 65,576.87

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Solution

The fourth proportional to 172,187.02, 258,283.15 and 65,576.87 is: 98,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,187.02 : 258,283.15 = 65,576.87 : x
  2. Step 2: Convert to fraction form
    172,187.02/258,283.15 = 65,576.87/x
  3. Step 3: Cross multiply
    172,187.02x = 258,283.15 × 65,576.87
  4. Step 4: Simplify right side
    172,187.02x = 16,937,401,110.30
  5. Step 5: Solve for x
    x = 16,937,401,110.30/172,187.02
  6. Step 6: Final answer
    x = 98,366.31

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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.