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Finding the Fourth Proportional to 404,697.35, 558,478.92 and 223,405.39

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Solution

The fourth proportional to 404,697.35, 558,478.92 and 223,405.39 is: 308,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,697.35 : 558,478.92 = 223,405.39 : x
  2. Step 2: Convert to fraction form
    404,697.35/558,478.92 = 223,405.39/x
  3. Step 3: Cross multiply
    404,697.35x = 558,478.92 × 223,405.39
  4. Step 4: Simplify right side
    404,697.35x = 124,767,200,929.38
  5. Step 5: Solve for x
    x = 124,767,200,929.38/404,697.35
  6. Step 6: Final answer
    x = 308,297.55

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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.