Home / 545,972.12-818,960.28-166,891.40

Finding the Fourth Proportional to 545,972.12, 818,960.28 and 166,891.40

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Solution

The fourth proportional to 545,972.12, 818,960.28 and 166,891.40 is: 250,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,972.12 : 818,960.28 = 166,891.40 : x
  2. Step 2: Convert to fraction form
    545,972.12/818,960.28 = 166,891.40/x
  3. Step 3: Cross multiply
    545,972.12x = 818,960.28 × 166,891.40
  4. Step 4: Simplify right side
    545,972.12x = 136,677,423,578.79
  5. Step 5: Solve for x
    x = 136,677,423,578.79/545,972.12
  6. Step 6: Final answer
    x = 250,337.74

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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.