Home / 229,172.20-316,315.77-156,604.47

Finding the Fourth Proportional to 229,172.20, 316,315.77 and 156,604.47

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Solution

The fourth proportional to 229,172.20, 316,315.77 and 156,604.47 is: 216,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,172.20 : 316,315.77 = 156,604.47 : x
  2. Step 2: Convert to fraction form
    229,172.20/316,315.77 = 156,604.47/x
  3. Step 3: Cross multiply
    229,172.20x = 316,315.77 × 156,604.47
  4. Step 4: Simplify right side
    229,172.20x = 49,536,463,513.49
  5. Step 5: Solve for x
    x = 49,536,463,513.49/229,172.20
  6. Step 6: Final answer
    x = 216,153.89

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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.