Home / 278,311.08-384,070.44-150,987.60

Finding the Fourth Proportional to 278,311.08, 384,070.44 and 150,987.60

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Solution

The fourth proportional to 278,311.08, 384,070.44 and 150,987.60 is: 208,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,311.08 : 384,070.44 = 150,987.60 : x
  2. Step 2: Convert to fraction form
    278,311.08/384,070.44 = 150,987.60/x
  3. Step 3: Cross multiply
    278,311.08x = 384,070.44 × 150,987.60
  4. Step 4: Simplify right side
    278,311.08x = 57,989,873,966.54
  5. Step 5: Solve for x
    x = 57,989,873,966.54/278,311.08
  6. Step 6: Final answer
    x = 208,363.51

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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.