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Finding the Fourth Proportional to 404,351.70, 558,071.37 and 243,295.55

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Solution

The fourth proportional to 404,351.70, 558,071.37 and 243,295.55 is: 335,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,351.70 : 558,071.37 = 243,295.55 : x
  2. Step 2: Convert to fraction form
    404,351.70/558,071.37 = 243,295.55/x
  3. Step 3: Cross multiply
    404,351.70x = 558,071.37 × 243,295.55
  4. Step 4: Simplify right side
    404,351.70x = 135,776,280,205.81
  5. Step 5: Solve for x
    x = 135,776,280,205.81/404,351.70
  6. Step 6: Final answer
    x = 335,787.59

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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.