Home / 278,566.50-384,426.29-157,704.66

Finding the Fourth Proportional to 278,566.50, 384,426.29 and 157,704.66

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Solution

The fourth proportional to 278,566.50, 384,426.29 and 157,704.66 is: 217,634.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,566.50 : 384,426.29 = 157,704.66 : x
  2. Step 2: Convert to fraction form
    278,566.50/384,426.29 = 157,704.66/x
  3. Step 3: Cross multiply
    278,566.50x = 384,426.29 × 157,704.66
  4. Step 4: Simplify right side
    278,566.50x = 60,625,817,359.51
  5. Step 5: Solve for x
    x = 60,625,817,359.51/278,566.50
  6. Step 6: Final answer
    x = 217,634.99

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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.