Home / 293,108.45-439,715.32-103,678.61

Finding the Fourth Proportional to 293,108.45, 439,715.32 and 103,678.61

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Solution

The fourth proportional to 293,108.45, 439,715.32 and 103,678.61 is: 155,536.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,108.45 : 439,715.32 = 103,678.61 : x
  2. Step 2: Convert to fraction form
    293,108.45/439,715.32 = 103,678.61/x
  3. Step 3: Cross multiply
    293,108.45x = 439,715.32 × 103,678.61
  4. Step 4: Simplify right side
    293,108.45x = 45,589,070,715.53
  5. Step 5: Solve for x
    x = 45,589,070,715.53/293,108.45
  6. Step 6: Final answer
    x = 155,536.53

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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.