Home / 278,015.90-383,657.78-157,152.94

Finding the Fourth Proportional to 278,015.90, 383,657.78 and 157,152.94

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Solution

The fourth proportional to 278,015.90, 383,657.78 and 157,152.94 is: 216,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,015.90 : 383,657.78 = 157,152.94 : x
  2. Step 2: Convert to fraction form
    278,015.90/383,657.78 = 157,152.94/x
  3. Step 3: Cross multiply
    278,015.90x = 383,657.78 × 157,152.94
  4. Step 4: Simplify right side
    278,015.90x = 60,292,948,080.87
  5. Step 5: Solve for x
    x = 60,292,948,080.87/278,015.90
  6. Step 6: Final answer
    x = 216,868.70

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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.