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Finding the Fourth Proportional to 342,903.93, 473,152.29 and 215,489.31

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Solution

The fourth proportional to 342,903.93, 473,152.29 and 215,489.31 is: 297,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,903.93 : 473,152.29 = 215,489.31 : x
  2. Step 2: Convert to fraction form
    342,903.93/473,152.29 = 215,489.31/x
  3. Step 3: Cross multiply
    342,903.93x = 473,152.29 × 215,489.31
  4. Step 4: Simplify right side
    342,903.93x = 101,959,260,497.02
  5. Step 5: Solve for x
    x = 101,959,260,497.02/342,903.93
  6. Step 6: Final answer
    x = 297,340.60

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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.