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Finding the Fourth Proportional to 207,285.40, 310,928.10 and 195,621.40

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Solution

The fourth proportional to 207,285.40, 310,928.10 and 195,621.40 is: 293,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,285.40 : 310,928.10 = 195,621.40 : x
  2. Step 2: Convert to fraction form
    207,285.40/310,928.10 = 195,621.40/x
  3. Step 3: Cross multiply
    207,285.40x = 310,928.10 × 195,621.40
  4. Step 4: Simplify right side
    207,285.40x = 60,824,190,221.34
  5. Step 5: Solve for x
    x = 60,824,190,221.34/207,285.40
  6. Step 6: Final answer
    x = 293,432.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.