Home / 278,136.32-383,825.40-150,809.72

Finding the Fourth Proportional to 278,136.32, 383,825.40 and 150,809.72

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Solution

The fourth proportional to 278,136.32, 383,825.40 and 150,809.72 is: 208,115.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,136.32 : 383,825.40 = 150,809.72 : x
  2. Step 2: Convert to fraction form
    278,136.32/383,825.40 = 150,809.72/x
  3. Step 3: Cross multiply
    278,136.32x = 383,825.40 × 150,809.72
  4. Step 4: Simplify right side
    278,136.32x = 57,884,601,102.89
  5. Step 5: Solve for x
    x = 57,884,601,102.89/278,136.32
  6. Step 6: Final answer
    x = 208,115.94

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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.