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Finding the Fourth Proportional to 315,432.81, 473,210.85 and 115,754.64

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Solution

The fourth proportional to 315,432.81, 473,210.85 and 115,754.64 is: 173,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,432.81 : 473,210.85 = 115,754.64 : x
  2. Step 2: Convert to fraction form
    315,432.81/473,210.85 = 115,754.64/x
  3. Step 3: Cross multiply
    315,432.81x = 473,210.85 × 115,754.64
  4. Step 4: Simplify right side
    315,432.81x = 54,776,351,585.84
  5. Step 5: Solve for x
    x = 54,776,351,585.84/315,432.81
  6. Step 6: Final answer
    x = 173,654.58

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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.