Home / 278,575.88-384,424.02-151,248.68

Finding the Fourth Proportional to 278,575.88, 384,424.02 and 151,248.68

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Solution

The fourth proportional to 278,575.88, 384,424.02 and 151,248.68 is: 208,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,575.88 : 384,424.02 = 151,248.68 : x
  2. Step 2: Convert to fraction form
    278,575.88/384,424.02 = 151,248.68/x
  3. Step 3: Cross multiply
    278,575.88x = 384,424.02 × 151,248.68
  4. Step 4: Simplify right side
    278,575.88x = 58,143,625,585.29
  5. Step 5: Solve for x
    x = 58,143,625,585.29/278,575.88
  6. Step 6: Final answer
    x = 208,717.37

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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.