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Finding the Fourth Proportional to 315,309.70, 472,964.55 and 93,693.70

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Solution

The fourth proportional to 315,309.70, 472,964.55 and 93,693.70 is: 140,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,309.70 : 472,964.55 = 93,693.70 : x
  2. Step 2: Convert to fraction form
    315,309.70/472,964.55 = 93,693.70/x
  3. Step 3: Cross multiply
    315,309.70x = 472,964.55 × 93,693.70
  4. Step 4: Simplify right side
    315,309.70x = 44,313,798,658.34
  5. Step 5: Solve for x
    x = 44,313,798,658.34/315,309.70
  6. Step 6: Final answer
    x = 140,540.55

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1.5x scale

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.