Home / 278,388.59-384,177.28-151,064.18

Finding the Fourth Proportional to 278,388.59, 384,177.28 and 151,064.18

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Solution

The fourth proportional to 278,388.59, 384,177.28 and 151,064.18 is: 208,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,388.59 : 384,177.28 = 151,064.18 : x
  2. Step 2: Convert to fraction form
    278,388.59/384,177.28 = 151,064.18/x
  3. Step 3: Cross multiply
    278,388.59x = 384,177.28 × 151,064.18
  4. Step 4: Simplify right side
    278,388.59x = 58,035,426,360.61
  5. Step 5: Solve for x
    x = 58,035,426,360.61/278,388.59
  6. Step 6: Final answer
    x = 208,469.13

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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.