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Finding the Fourth Proportional to 278,042.01, 383,698.55 and 150,717.60

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Solution

The fourth proportional to 278,042.01, 383,698.55 and 150,717.60 is: 207,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,042.01 : 383,698.55 = 150,717.60 : x
  2. Step 2: Convert to fraction form
    278,042.01/383,698.55 = 150,717.60/x
  3. Step 3: Cross multiply
    278,042.01x = 383,698.55 × 150,717.60
  4. Step 4: Simplify right side
    278,042.01x = 57,830,124,579.48
  5. Step 5: Solve for x
    x = 57,830,124,579.48/278,042.01
  6. Step 6: Final answer
    x = 207,990.60

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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.