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Finding the Fourth Proportional to 303,347.90, 454,985.40 and 125,836.40

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Solution

The fourth proportional to 303,347.90, 454,985.40 and 125,836.40 is: 188,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,347.90 : 454,985.40 = 125,836.40 : x
  2. Step 2: Convert to fraction form
    303,347.90/454,985.40 = 125,836.40/x
  3. Step 3: Cross multiply
    303,347.90x = 454,985.40 × 125,836.40
  4. Step 4: Simplify right side
    303,347.90x = 57,253,724,788.56
  5. Step 5: Solve for x
    x = 57,253,724,788.56/303,347.90
  6. Step 6: Final answer
    x = 188,739.48

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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.