Home / 293,621.60-440,432.40-72,005.60

Finding the Fourth Proportional to 293,621.60, 440,432.40 and 72,005.60

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Solution

The fourth proportional to 293,621.60, 440,432.40 and 72,005.60 is: 108,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,621.60 : 440,432.40 = 72,005.60 : x
  2. Step 2: Convert to fraction form
    293,621.60/440,432.40 = 72,005.60/x
  3. Step 3: Cross multiply
    293,621.60x = 440,432.40 × 72,005.60
  4. Step 4: Simplify right side
    293,621.60x = 31,713,599,221.44
  5. Step 5: Solve for x
    x = 31,713,599,221.44/293,621.60
  6. Step 6: Final answer
    x = 108,008.40

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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.