Home / 286,930.18-430,391.76-129,047.14

Finding the Fourth Proportional to 286,930.18, 430,391.76 and 129,047.14

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Solution

The fourth proportional to 286,930.18, 430,391.76 and 129,047.14 is: 193,569.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,930.18 : 430,391.76 = 129,047.14 : x
  2. Step 2: Convert to fraction form
    286,930.18/430,391.76 = 129,047.14/x
  3. Step 3: Cross multiply
    286,930.18x = 430,391.76 × 129,047.14
  4. Step 4: Simplify right side
    286,930.18x = 55,540,825,707.57
  5. Step 5: Solve for x
    x = 55,540,825,707.57/286,930.18
  6. Step 6: Final answer
    x = 193,569.13

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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.