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Finding the Fourth Proportional to 288,373.53, 395,065.14 and 277,591.91

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Solution

The fourth proportional to 288,373.53, 395,065.14 and 277,591.91 is: 380,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,373.53 : 395,065.14 = 277,591.91 : x
  2. Step 2: Convert to fraction form
    288,373.53/395,065.14 = 277,591.91/x
  3. Step 3: Cross multiply
    288,373.53x = 395,065.14 × 277,591.91
  4. Step 4: Simplify right side
    288,373.53x = 109,666,886,787.02
  5. Step 5: Solve for x
    x = 109,666,886,787.02/288,373.53
  6. Step 6: Final answer
    x = 380,294.57

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.