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Finding the Fourth Proportional to 172,829.70, 259,244.55 and 162,988.20

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Solution

The fourth proportional to 172,829.70, 259,244.55 and 162,988.20 is: 244,482.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,829.70 : 259,244.55 = 162,988.20 : x
  2. Step 2: Convert to fraction form
    172,829.70/259,244.55 = 162,988.20/x
  3. Step 3: Cross multiply
    172,829.70x = 259,244.55 × 162,988.20
  4. Step 4: Simplify right side
    172,829.70x = 42,253,802,564.31
  5. Step 5: Solve for x
    x = 42,253,802,564.31/172,829.70
  6. Step 6: Final answer
    x = 244,482.30

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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.