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Finding the Fourth Proportional to 240,048.40, 360,072.60 and 82,278.40

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Solution

The fourth proportional to 240,048.40, 360,072.60 and 82,278.40 is: 123,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,048.40 : 360,072.60 = 82,278.40 : x
  2. Step 2: Convert to fraction form
    240,048.40/360,072.60 = 82,278.40/x
  3. Step 3: Cross multiply
    240,048.40x = 360,072.60 × 82,278.40
  4. Step 4: Simplify right side
    240,048.40x = 29,626,197,411.84
  5. Step 5: Solve for x
    x = 29,626,197,411.84/240,048.40
  6. Step 6: Final answer
    x = 123,417.60

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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.