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Finding the Fourth Proportional to 295,161.60, 442,670.40 and 84,777.60

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Solution

The fourth proportional to 295,161.60, 442,670.40 and 84,777.60 is: 127,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,161.60 : 442,670.40 = 84,777.60 : x
  2. Step 2: Convert to fraction form
    295,161.60/442,670.40 = 84,777.60/x
  3. Step 3: Cross multiply
    295,161.60x = 442,670.40 × 84,777.60
  4. Step 4: Simplify right side
    295,161.60x = 37,528,534,103.04
  5. Step 5: Solve for x
    x = 37,528,534,103.04/295,161.60
  6. Step 6: Final answer
    x = 127,145.72

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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.