Home / 223,830.18-308,648.88-172,851.12

Finding the Fourth Proportional to 223,830.18, 308,648.88 and 172,851.12

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Solution

The fourth proportional to 223,830.18, 308,648.88 and 172,851.12 is: 238,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,830.18 : 308,648.88 = 172,851.12 : x
  2. Step 2: Convert to fraction form
    223,830.18/308,648.88 = 172,851.12/x
  3. Step 3: Cross multiply
    223,830.18x = 308,648.88 × 172,851.12
  4. Step 4: Simplify right side
    223,830.18x = 53,350,304,594.75
  5. Step 5: Solve for x
    x = 53,350,304,594.75/223,830.18
  6. Step 6: Final answer
    x = 238,351.70

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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.