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Finding the Fourth Proportional to 295,720.40, 443,580.60 and 245,856.80

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Solution

The fourth proportional to 295,720.40, 443,580.60 and 245,856.80 is: 368,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,720.40 : 443,580.60 = 245,856.80 : x
  2. Step 2: Convert to fraction form
    295,720.40/443,580.60 = 245,856.80/x
  3. Step 3: Cross multiply
    295,720.40x = 443,580.60 × 245,856.80
  4. Step 4: Simplify right side
    295,720.40x = 109,057,306,858.08
  5. Step 5: Solve for x
    x = 109,057,306,858.08/295,720.40
  6. Step 6: Final answer
    x = 368,785.20

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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.