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Finding the Fourth Proportional to 240,219.40, 360,329.10 and 122,121.40

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Solution

The fourth proportional to 240,219.40, 360,329.10 and 122,121.40 is: 183,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,219.40 : 360,329.10 = 122,121.40 : x
  2. Step 2: Convert to fraction form
    240,219.40/360,329.10 = 122,121.40/x
  3. Step 3: Cross multiply
    240,219.40x = 360,329.10 × 122,121.40
  4. Step 4: Simplify right side
    240,219.40x = 44,003,894,152.74
  5. Step 5: Solve for x
    x = 44,003,894,152.74/240,219.40
  6. Step 6: Final answer
    x = 183,182.10

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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.