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Finding the Fourth Proportional to 231,653.40, 347,480.10 and 216,101.40

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Solution

The fourth proportional to 231,653.40, 347,480.10 and 216,101.40 is: 324,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,653.40 : 347,480.10 = 216,101.40 : x
  2. Step 2: Convert to fraction form
    231,653.40/347,480.10 = 216,101.40/x
  3. Step 3: Cross multiply
    231,653.40x = 347,480.10 × 216,101.40
  4. Step 4: Simplify right side
    231,653.40x = 75,090,936,082.14
  5. Step 5: Solve for x
    x = 75,090,936,082.14/231,653.40
  6. Step 6: Final answer
    x = 324,152.10

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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.