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Finding the Fourth Proportional to 348,393.98, 480,756.12 and 195,411.72

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Solution

The fourth proportional to 348,393.98, 480,756.12 and 195,411.72 is: 269,652.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,393.98 : 480,756.12 = 195,411.72 : x
  2. Step 2: Convert to fraction form
    348,393.98/480,756.12 = 195,411.72/x
  3. Step 3: Cross multiply
    348,393.98x = 480,756.12 × 195,411.72
  4. Step 4: Simplify right side
    348,393.98x = 93,945,380,309.73
  5. Step 5: Solve for x
    x = 93,945,380,309.73/348,393.98
  6. Step 6: Final answer
    x = 269,652.71

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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.