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Finding the Fourth Proportional to 312,273.84, 430,988.44 and 191,481.84

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Solution

The fourth proportional to 312,273.84, 430,988.44 and 191,481.84 is: 264,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,273.84 : 430,988.44 = 191,481.84 : x
  2. Step 2: Convert to fraction form
    312,273.84/430,988.44 = 191,481.84/x
  3. Step 3: Cross multiply
    312,273.84x = 430,988.44 × 191,481.84
  4. Step 4: Simplify right side
    312,273.84x = 82,526,459,509.93
  5. Step 5: Solve for x
    x = 82,526,459,509.93/312,273.84
  6. Step 6: Final answer
    x = 264,275.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.