Home / 316,965.10-474,658.95-221,749.57

Finding the Fourth Proportional to 316,965.10, 474,658.95 and 221,749.57

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Solution

The fourth proportional to 316,965.10, 474,658.95 and 221,749.57 is: 332,072.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,965.10 : 474,658.95 = 221,749.57 : x
  2. Step 2: Convert to fraction form
    316,965.10/474,658.95 = 221,749.57/x
  3. Step 3: Cross multiply
    316,965.10x = 474,658.95 × 221,749.57
  4. Step 4: Simplify right side
    316,965.10x = 105,255,418,059.15
  5. Step 5: Solve for x
    x = 105,255,418,059.15/316,965.10
  6. Step 6: Final answer
    x = 332,072.58

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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.