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Finding the Fourth Proportional to 303,358.90, 455,001.90 and 125,847.40

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Solution

The fourth proportional to 303,358.90, 455,001.90 and 125,847.40 is: 188,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,358.90 : 455,001.90 = 125,847.40 : x
  2. Step 2: Convert to fraction form
    303,358.90/455,001.90 = 125,847.40/x
  3. Step 3: Cross multiply
    303,358.90x = 455,001.90 × 125,847.40
  4. Step 4: Simplify right side
    303,358.90x = 57,260,806,110.06
  5. Step 5: Solve for x
    x = 57,260,806,110.06/303,358.90
  6. Step 6: Final answer
    x = 188,755.98

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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.