Home / 389,886.40-584,829.60-223,998.40

Finding the Fourth Proportional to 389,886.40, 584,829.60 and 223,998.40

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Solution

The fourth proportional to 389,886.40, 584,829.60 and 223,998.40 is: 335,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,886.40 : 584,829.60 = 223,998.40 : x
  2. Step 2: Convert to fraction form
    389,886.40/584,829.60 = 223,998.40/x
  3. Step 3: Cross multiply
    389,886.40x = 584,829.60 × 223,998.40
  4. Step 4: Simplify right side
    389,886.40x = 131,000,894,672.64
  5. Step 5: Solve for x
    x = 131,000,894,672.64/389,886.40
  6. Step 6: Final answer
    x = 335,997.60

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Similar ratio
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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.