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Finding the Fourth Proportional to 293,564.78, 440,347.44 and 80,316.86

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Solution

The fourth proportional to 293,564.78, 440,347.44 and 80,316.86 is: 120,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,564.78 : 440,347.44 = 80,316.86 : x
  2. Step 2: Convert to fraction form
    293,564.78/440,347.44 = 80,316.86/x
  3. Step 3: Cross multiply
    293,564.78x = 440,347.44 × 80,316.86
  4. Step 4: Simplify right side
    293,564.78x = 35,367,323,689.84
  5. Step 5: Solve for x
    x = 35,367,323,689.84/293,564.78
  6. Step 6: Final answer
    x = 120,475.36

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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.