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Finding the Fourth Proportional to 280,872.93, 387,576.80 and 160,007.01

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Solution

The fourth proportional to 280,872.93, 387,576.80 and 160,007.01 is: 220,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,872.93 : 387,576.80 = 160,007.01 : x
  2. Step 2: Convert to fraction form
    280,872.93/387,576.80 = 160,007.01/x
  3. Step 3: Cross multiply
    280,872.93x = 387,576.80 × 160,007.01
  4. Step 4: Simplify right side
    280,872.93x = 62,015,005,440.07
  5. Step 5: Solve for x
    x = 62,015,005,440.07/280,872.93
  6. Step 6: Final answer
    x = 220,793.81

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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.