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Finding the Fourth Proportional to 172,254.47, 258,381.70 and 53,935.07

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Solution

The fourth proportional to 172,254.47, 258,381.70 and 53,935.07 is: 80,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,254.47 : 258,381.70 = 53,935.07 : x
  2. Step 2: Convert to fraction form
    172,254.47/258,381.70 = 53,935.07/x
  3. Step 3: Cross multiply
    172,254.47x = 258,381.70 × 53,935.07
  4. Step 4: Simplify right side
    172,254.47x = 13,935,833,649.47
  5. Step 5: Solve for x
    x = 13,935,833,649.47/172,254.47
  6. Step 6: Final answer
    x = 80,902.60

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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.