Home / 381,839.60-526,899.13-220,746.40

Finding the Fourth Proportional to 381,839.60, 526,899.13 and 220,746.40

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Solution

The fourth proportional to 381,839.60, 526,899.13 and 220,746.40 is: 304,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,839.60 : 526,899.13 = 220,746.40 : x
  2. Step 2: Convert to fraction form
    381,839.60/526,899.13 = 220,746.40/x
  3. Step 3: Cross multiply
    381,839.60x = 526,899.13 × 220,746.40
  4. Step 4: Simplify right side
    381,839.60x = 116,311,084,241.52
  5. Step 5: Solve for x
    x = 116,311,084,241.52/381,839.60
  6. Step 6: Final answer
    x = 304,607.18

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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.