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Finding the Fourth Proportional to 286,507.80, 429,761.70 and 223,522.20

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Solution

The fourth proportional to 286,507.80, 429,761.70 and 223,522.20 is: 335,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,507.80 : 429,761.70 = 223,522.20 : x
  2. Step 2: Convert to fraction form
    286,507.80/429,761.70 = 223,522.20/x
  3. Step 3: Cross multiply
    286,507.80x = 429,761.70 × 223,522.20
  4. Step 4: Simplify right side
    286,507.80x = 96,061,280,659.74
  5. Step 5: Solve for x
    x = 96,061,280,659.74/286,507.80
  6. Step 6: Final answer
    x = 335,283.30

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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.