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Finding the Fourth Proportional to 353,833.86, 488,912.50 and 282,800.10

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Solution

The fourth proportional to 353,833.86, 488,912.50 and 282,800.10 is: 390,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,833.86 : 488,912.50 = 282,800.10 : x
  2. Step 2: Convert to fraction form
    353,833.86/488,912.50 = 282,800.10/x
  3. Step 3: Cross multiply
    353,833.86x = 488,912.50 × 282,800.10
  4. Step 4: Simplify right side
    353,833.86x = 138,264,503,891.25
  5. Step 5: Solve for x
    x = 138,264,503,891.25/353,833.86
  6. Step 6: Final answer
    x = 390,761.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.