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Finding the Fourth Proportional to 315,394.40, 473,167.20 and 105,034.16

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Solution

The fourth proportional to 315,394.40, 473,167.20 and 105,034.16 is: 157,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,394.40 : 473,167.20 = 105,034.16 : x
  2. Step 2: Convert to fraction form
    315,394.40/473,167.20 = 105,034.16/x
  3. Step 3: Cross multiply
    315,394.40x = 473,167.20 × 105,034.16
  4. Step 4: Simplify right side
    315,394.40x = 49,698,719,391.55
  5. Step 5: Solve for x
    x = 49,698,719,391.55/315,394.40
  6. Step 6: Final answer
    x = 157,576.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.