Home / 229,450.40-316,386.30-156,865.15

Finding the Fourth Proportional to 229,450.40, 316,386.30 and 156,865.15

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Solution

The fourth proportional to 229,450.40, 316,386.30 and 156,865.15 is: 216,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,450.40 : 316,386.30 = 156,865.15 : x
  2. Step 2: Convert to fraction form
    229,450.40/316,386.30 = 156,865.15/x
  3. Step 3: Cross multiply
    229,450.40x = 316,386.30 × 156,865.15
  4. Step 4: Simplify right side
    229,450.40x = 49,629,985,391.17
  5. Step 5: Solve for x
    x = 49,629,985,391.17/229,450.40
  6. Step 6: Final answer
    x = 216,299.41

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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.