Home / 280,292.03-420,504.87-90,752.46

Finding the Fourth Proportional to 280,292.03, 420,504.87 and 90,752.46

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Solution

The fourth proportional to 280,292.03, 420,504.87 and 90,752.46 is: 136,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,292.03 : 420,504.87 = 90,752.46 : x
  2. Step 2: Convert to fraction form
    280,292.03/420,504.87 = 90,752.46/x
  3. Step 3: Cross multiply
    280,292.03x = 420,504.87 × 90,752.46
  4. Step 4: Simplify right side
    280,292.03x = 38,161,851,394.48
  5. Step 5: Solve for x
    x = 38,161,851,394.48/280,292.03
  6. Step 6: Final answer
    x = 136,150.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.