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Finding the Fourth Proportional to 273,344.40, 409,870.80 and 115,394.40

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Solution

The fourth proportional to 273,344.40, 409,870.80 and 115,394.40 is: 173,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,344.40 : 409,870.80 = 115,394.40 : x
  2. Step 2: Convert to fraction form
    273,344.40/409,870.80 = 115,394.40/x
  3. Step 3: Cross multiply
    273,344.40x = 409,870.80 × 115,394.40
  4. Step 4: Simplify right side
    273,344.40x = 47,296,795,043.52
  5. Step 5: Solve for x
    x = 47,296,795,043.52/273,344.40
  6. Step 6: Final answer
    x = 173,030.05

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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.