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Finding the Fourth Proportional to 348,353.70, 480,765.70 and 197,434.50

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Solution

The fourth proportional to 348,353.70, 480,765.70 and 197,434.50 is: 272,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,353.70 : 480,765.70 = 197,434.50 : x
  2. Step 2: Convert to fraction form
    348,353.70/480,765.70 = 197,434.50/x
  3. Step 3: Cross multiply
    348,353.70x = 480,765.70 × 197,434.50
  4. Step 4: Simplify right side
    348,353.70x = 94,919,735,596.65
  5. Step 5: Solve for x
    x = 94,919,735,596.65/348,353.70
  6. Step 6: Final answer
    x = 272,480.92

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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.