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Finding the Fourth Proportional to 348,456.60, 480,840.90 and 195,473.40

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Solution

The fourth proportional to 348,456.60, 480,840.90 and 195,473.40 is: 269,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,456.60 : 480,840.90 = 195,473.40 : x
  2. Step 2: Convert to fraction form
    348,456.60/480,840.90 = 195,473.40/x
  3. Step 3: Cross multiply
    348,456.60x = 480,840.90 × 195,473.40
  4. Step 4: Simplify right side
    348,456.60x = 93,991,605,582.06
  5. Step 5: Solve for x
    x = 93,991,605,582.06/348,456.60
  6. Step 6: Final answer
    x = 269,736.91

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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.