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Finding the Fourth Proportional to 296,685, 445,083.30 and 119,206.20

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Solution

The fourth proportional to 296,685, 445,083.30 and 119,206.20 is: 178,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,685 : 445,083.30 = 119,206.20 : x
  2. Step 2: Convert to fraction form
    296,685/445,083.30 = 119,206.20/x
  3. Step 3: Cross multiply
    296,685x = 445,083.30 × 119,206.20
  4. Step 4: Simplify right side
    296,685x = 53,056,688,876.46
  5. Step 5: Solve for x
    x = 53,056,688,876.46/296,685
  6. Step 6: Final answer
    x = 178,831.72

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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.