Home / 229,914.12-317,278.43-129,312.12

Finding the Fourth Proportional to 229,914.12, 317,278.43 and 129,312.12

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Solution

The fourth proportional to 229,914.12, 317,278.43 and 129,312.12 is: 178,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,914.12 : 317,278.43 = 129,312.12 : x
  2. Step 2: Convert to fraction form
    229,914.12/317,278.43 = 129,312.12/x
  3. Step 3: Cross multiply
    229,914.12x = 317,278.43 × 129,312.12
  4. Step 4: Simplify right side
    229,914.12x = 41,027,946,413.57
  5. Step 5: Solve for x
    x = 41,027,946,413.57/229,914.12
  6. Step 6: Final answer
    x = 178,449.01

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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.