Home / 438,938.56-658,108.32-211,113.88

Finding the Fourth Proportional to 438,938.56, 658,108.32 and 211,113.88

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Solution

The fourth proportional to 438,938.56, 658,108.32 and 211,113.88 is: 316,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,938.56 : 658,108.32 = 211,113.88 : x
  2. Step 2: Convert to fraction form
    438,938.56/658,108.32 = 211,113.88/x
  3. Step 3: Cross multiply
    438,938.56x = 658,108.32 × 211,113.88
  4. Step 4: Simplify right side
    438,938.56x = 138,935,800,895.48
  5. Step 5: Solve for x
    x = 138,935,800,895.48/438,938.56
  6. Step 6: Final answer
    x = 316,526.76

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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.