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Finding the Fourth Proportional to 342,948.79, 473,294.25 and 207,015.79

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Solution

The fourth proportional to 342,948.79, 473,294.25 and 207,015.79 is: 285,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,948.79 : 473,294.25 = 207,015.79 : x
  2. Step 2: Convert to fraction form
    342,948.79/473,294.25 = 207,015.79/x
  3. Step 3: Cross multiply
    342,948.79x = 473,294.25 × 207,015.79
  4. Step 4: Simplify right side
    342,948.79x = 97,979,383,066.21
  5. Step 5: Solve for x
    x = 97,979,383,066.21/342,948.79
  6. Step 6: Final answer
    x = 285,696.83

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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.