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Finding the Fourth Proportional to 210,011.74, 314,961.11 and 76,892.69

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Solution

The fourth proportional to 210,011.74, 314,961.11 and 76,892.69 is: 115,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,011.74 : 314,961.11 = 76,892.69 : x
  2. Step 2: Convert to fraction form
    210,011.74/314,961.11 = 76,892.69/x
  3. Step 3: Cross multiply
    210,011.74x = 314,961.11 × 76,892.69
  4. Step 4: Simplify right side
    210,011.74x = 24,218,207,684.57
  5. Step 5: Solve for x
    x = 24,218,207,684.57/210,011.74
  6. Step 6: Final answer
    x = 115,318.35

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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.