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Finding the Fourth Proportional to 256,463.32, 384,646.66 and 69,450.20

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Solution

The fourth proportional to 256,463.32, 384,646.66 and 69,450.20 is: 104,162.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,463.32 : 384,646.66 = 69,450.20 : x
  2. Step 2: Convert to fraction form
    256,463.32/384,646.66 = 69,450.20/x
  3. Step 3: Cross multiply
    256,463.32x = 384,646.66 × 69,450.20
  4. Step 4: Simplify right side
    256,463.32x = 26,713,787,466.33
  5. Step 5: Solve for x
    x = 26,713,787,466.33/256,463.32
  6. Step 6: Final answer
    x = 104,162.21

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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.