Home / 278,966.07-384,972.87-151,642.59

Finding the Fourth Proportional to 278,966.07, 384,972.87 and 151,642.59

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Solution

The fourth proportional to 278,966.07, 384,972.87 and 151,642.59 is: 209,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,966.07 : 384,972.87 = 151,642.59 : x
  2. Step 2: Convert to fraction form
    278,966.07/384,972.87 = 151,642.59/x
  3. Step 3: Cross multiply
    278,966.07x = 384,972.87 × 151,642.59
  4. Step 4: Simplify right side
    278,966.07x = 58,378,283,086.53
  5. Step 5: Solve for x
    x = 58,378,283,086.53/278,966.07
  6. Step 6: Final answer
    x = 209,266.61

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1.5x scale

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.