Home / 280,600.48-387,226.56-153,276.04

Finding the Fourth Proportional to 280,600.48, 387,226.56 and 153,276.04

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Solution

The fourth proportional to 280,600.48, 387,226.56 and 153,276.04 is: 211,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,600.48 : 387,226.56 = 153,276.04 : x
  2. Step 2: Convert to fraction form
    280,600.48/387,226.56 = 153,276.04/x
  3. Step 3: Cross multiply
    280,600.48x = 387,226.56 × 153,276.04
  4. Step 4: Simplify right side
    280,600.48x = 59,352,553,699.62
  5. Step 5: Solve for x
    x = 59,352,553,699.62/280,600.48
  6. Step 6: Final answer
    x = 211,519.79

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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.