Home / 278,090.78-383,766.12-150,766.47

Finding the Fourth Proportional to 278,090.78, 383,766.12 and 150,766.47

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Solution

The fourth proportional to 278,090.78, 383,766.12 and 150,766.47 is: 208,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,090.78 : 383,766.12 = 150,766.47 : x
  2. Step 2: Convert to fraction form
    278,090.78/383,766.12 = 150,766.47/x
  3. Step 3: Cross multiply
    278,090.78x = 383,766.12 × 150,766.47
  4. Step 4: Simplify right side
    278,090.78x = 57,859,063,218.00
  5. Step 5: Solve for x
    x = 57,859,063,218.00/278,090.78
  6. Step 6: Final answer
    x = 208,058.19

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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.