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Finding the Fourth Proportional to 240,246.40, 360,661.20 and 133,715.20

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Solution

The fourth proportional to 240,246.40, 360,661.20 and 133,715.20 is: 200,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,246.40 : 360,661.20 = 133,715.20 : x
  2. Step 2: Convert to fraction form
    240,246.40/360,661.20 = 133,715.20/x
  3. Step 3: Cross multiply
    240,246.40x = 360,661.20 × 133,715.20
  4. Step 4: Simplify right side
    240,246.40x = 48,225,884,490.24
  5. Step 5: Solve for x
    x = 48,225,884,490.24/240,246.40
  6. Step 6: Final answer
    x = 200,735.10

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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.