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Finding the Fourth Proportional to 295,837.68, 443,755.44 and 137,978.40

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Solution

The fourth proportional to 295,837.68, 443,755.44 and 137,978.40 is: 206,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,837.68 : 443,755.44 = 137,978.40 : x
  2. Step 2: Convert to fraction form
    295,837.68/443,755.44 = 137,978.40/x
  3. Step 3: Cross multiply
    295,837.68x = 443,755.44 × 137,978.40
  4. Step 4: Simplify right side
    295,837.68x = 61,228,665,602.50
  5. Step 5: Solve for x
    x = 61,228,665,602.50/295,837.68
  6. Step 6: Final answer
    x = 206,967.10

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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.