Home / 229,078.12-343,534.86-79,277.76

Finding the Fourth Proportional to 229,078.12, 343,534.86 and 79,277.76

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Solution

The fourth proportional to 229,078.12, 343,534.86 and 79,277.76 is: 118,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,078.12 : 343,534.86 = 79,277.76 : x
  2. Step 2: Convert to fraction form
    229,078.12/343,534.86 = 79,277.76/x
  3. Step 3: Cross multiply
    229,078.12x = 343,534.86 × 79,277.76
  4. Step 4: Simplify right side
    229,078.12x = 27,234,674,182.71
  5. Step 5: Solve for x
    x = 27,234,674,182.71/229,078.12
  6. Step 6: Final answer
    x = 118,888.15

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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.