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Finding the Fourth Proportional to 315,330.96, 472,715.16 and 115,604.70

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Solution

The fourth proportional to 315,330.96, 472,715.16 and 115,604.70 is: 173,303.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,330.96 : 472,715.16 = 115,604.70 : x
  2. Step 2: Convert to fraction form
    315,330.96/472,715.16 = 115,604.70/x
  3. Step 3: Cross multiply
    315,330.96x = 472,715.16 × 115,604.70
  4. Step 4: Simplify right side
    315,330.96x = 54,648,094,257.25
  5. Step 5: Solve for x
    x = 54,648,094,257.25/315,330.96
  6. Step 6: Final answer
    x = 173,303.93

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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.