Home / 347,478.12-479,468.79-194,508.36

Finding the Fourth Proportional to 347,478.12, 479,468.79 and 194,508.36

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Solution

The fourth proportional to 347,478.12, 479,468.79 and 194,508.36 is: 268,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,478.12 : 479,468.79 = 194,508.36 : x
  2. Step 2: Convert to fraction form
    347,478.12/479,468.79 = 194,508.36/x
  3. Step 3: Cross multiply
    347,478.12x = 479,468.79 × 194,508.36
  4. Step 4: Simplify right side
    347,478.12x = 93,260,688,014.08
  5. Step 5: Solve for x
    x = 93,260,688,014.08/347,478.12
  6. Step 6: Final answer
    x = 268,392.98

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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.