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Finding the Fourth Proportional to 404,639.65, 558,402.74 and 223,351.62

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Solution

The fourth proportional to 404,639.65, 558,402.74 and 223,351.62 is: 308,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,639.65 : 558,402.74 = 223,351.62 : x
  2. Step 2: Convert to fraction form
    404,639.65/558,402.74 = 223,351.62/x
  3. Step 3: Cross multiply
    404,639.65x = 558,402.74 × 223,351.62
  4. Step 4: Simplify right side
    404,639.65x = 124,720,156,591.44
  5. Step 5: Solve for x
    x = 124,720,156,591.44/404,639.65
  6. Step 6: Final answer
    x = 308,225.25

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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.