Home / 268,534.18-402,910.74-172,578.88

Finding the Fourth Proportional to 268,534.18, 402,910.74 and 172,578.88

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Solution

The fourth proportional to 268,534.18, 402,910.74 and 172,578.88 is: 258,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,534.18 : 402,910.74 = 172,578.88 : x
  2. Step 2: Convert to fraction form
    268,534.18/402,910.74 = 172,578.88/x
  3. Step 3: Cross multiply
    268,534.18x = 402,910.74 × 172,578.88
  4. Step 4: Simplify right side
    268,534.18x = 69,533,884,249.17
  5. Step 5: Solve for x
    x = 69,533,884,249.17/268,534.18
  6. Step 6: Final answer
    x = 258,938.67

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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.