Home / 347,435.31-479,392.55-218,298.96

Finding the Fourth Proportional to 347,435.31, 479,392.55 and 218,298.96

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Solution

The fourth proportional to 347,435.31, 479,392.55 and 218,298.96 is: 301,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,435.31 : 479,392.55 = 218,298.96 : x
  2. Step 2: Convert to fraction form
    347,435.31/479,392.55 = 218,298.96/x
  3. Step 3: Cross multiply
    347,435.31x = 479,392.55 × 218,298.96
  4. Step 4: Simplify right side
    347,435.31x = 104,650,891,608.29
  5. Step 5: Solve for x
    x = 104,650,891,608.29/347,435.31
  6. Step 6: Final answer
    x = 301,209.72

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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.