Home / 379,261.98-523,397.43-218,117.16

Finding the Fourth Proportional to 379,261.98, 523,397.43 and 218,117.16

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Solution

The fourth proportional to 379,261.98, 523,397.43 and 218,117.16 is: 301,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,261.98 : 523,397.43 = 218,117.16 : x
  2. Step 2: Convert to fraction form
    379,261.98/523,397.43 = 218,117.16/x
  3. Step 3: Cross multiply
    379,261.98x = 523,397.43 × 218,117.16
  4. Step 4: Simplify right side
    379,261.98x = 114,161,960,982.90
  5. Step 5: Solve for x
    x = 114,161,960,982.90/379,261.98
  6. Step 6: Final answer
    x = 301,010.82

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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.