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Finding the Fourth Proportional to 372,686.84, 514,314.08 and 211,546.86

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Solution

The fourth proportional to 372,686.84, 514,314.08 and 211,546.86 is: 291,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,686.84 : 514,314.08 = 211,546.86 : x
  2. Step 2: Convert to fraction form
    372,686.84/514,314.08 = 211,546.86/x
  3. Step 3: Cross multiply
    372,686.84x = 514,314.08 × 211,546.86
  4. Step 4: Simplify right side
    372,686.84x = 108,801,528,677.79
  5. Step 5: Solve for x
    x = 108,801,528,677.79/372,686.84
  6. Step 6: Final answer
    x = 291,938.21

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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.