Home / 438,994.14-658,039.23-172,646.70

Finding the Fourth Proportional to 438,994.14, 658,039.23 and 172,646.70

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Solution

The fourth proportional to 438,994.14, 658,039.23 and 172,646.70 is: 258,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,994.14 : 658,039.23 = 172,646.70 : x
  2. Step 2: Convert to fraction form
    438,994.14/658,039.23 = 172,646.70/x
  3. Step 3: Cross multiply
    438,994.14x = 658,039.23 × 172,646.70
  4. Step 4: Simplify right side
    438,994.14x = 113,608,301,530.04
  5. Step 5: Solve for x
    x = 113,608,301,530.04/438,994.14
  6. Step 6: Final answer
    x = 258,792.30

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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.