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Finding the Fourth Proportional to 312,078.30, 466,951.05 and 207,102.30

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Solution

The fourth proportional to 312,078.30, 466,951.05 and 207,102.30 is: 309,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,078.30 : 466,951.05 = 207,102.30 : x
  2. Step 2: Convert to fraction form
    312,078.30/466,951.05 = 207,102.30/x
  3. Step 3: Cross multiply
    312,078.30x = 466,951.05 × 207,102.30
  4. Step 4: Simplify right side
    312,078.30x = 96,706,636,442.42
  5. Step 5: Solve for x
    x = 96,706,636,442.42/312,078.30
  6. Step 6: Final answer
    x = 309,879.40

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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.