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Finding the Fourth Proportional to 288,373.57, 395,065.16 and 277,591.93

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Solution

The fourth proportional to 288,373.57, 395,065.16 and 277,591.93 is: 380,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,373.57 : 395,065.16 = 277,591.93 : x
  2. Step 2: Convert to fraction form
    288,373.57/395,065.16 = 277,591.93/x
  3. Step 3: Cross multiply
    288,373.57x = 395,065.16 × 277,591.93
  4. Step 4: Simplify right side
    288,373.57x = 109,666,900,466.96
  5. Step 5: Solve for x
    x = 109,666,900,466.96/288,373.57
  6. Step 6: Final answer
    x = 380,294.57

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1.5x scale

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.