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Finding the Fourth Proportional to 295,798.60, 443,187.60 and 137,702.80

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Solution

The fourth proportional to 295,798.60, 443,187.60 and 137,702.80 is: 206,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,798.60 : 443,187.60 = 137,702.80 : x
  2. Step 2: Convert to fraction form
    295,798.60/443,187.60 = 137,702.80/x
  3. Step 3: Cross multiply
    295,798.60x = 443,187.60 × 137,702.80
  4. Step 4: Simplify right side
    295,798.60x = 61,028,173,445.28
  5. Step 5: Solve for x
    x = 61,028,173,445.28/295,798.60
  6. Step 6: Final answer
    x = 206,316.64

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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.