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Finding the Fourth Proportional to 172,543.80, 238,240.18 and 169,788.20

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Solution

The fourth proportional to 172,543.80, 238,240.18 and 169,788.20 is: 234,435.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,543.80 : 238,240.18 = 169,788.20 : x
  2. Step 2: Convert to fraction form
    172,543.80/238,240.18 = 169,788.20/x
  3. Step 3: Cross multiply
    172,543.80x = 238,240.18 × 169,788.20
  4. Step 4: Simplify right side
    172,543.80x = 40,450,371,329.88
  5. Step 5: Solve for x
    x = 40,450,371,329.88/172,543.80
  6. Step 6: Final answer
    x = 234,435.38

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1.5x scale

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.