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Finding the Fourth Proportional to 342,899.65, 474,104.07 and 300,335.77

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Solution

The fourth proportional to 342,899.65, 474,104.07 and 300,335.77 is: 415,253.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,899.65 : 474,104.07 = 300,335.77 : x
  2. Step 2: Convert to fraction form
    342,899.65/474,104.07 = 300,335.77/x
  3. Step 3: Cross multiply
    342,899.65x = 474,104.07 × 300,335.77
  4. Step 4: Simplify right side
    342,899.65x = 142,390,408,553.06
  5. Step 5: Solve for x
    x = 142,390,408,553.06/342,899.65
  6. Step 6: Final answer
    x = 415,253.88

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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.