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Finding the Fourth Proportional to 256,792.95, 354,384.72 and 142,069.62

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Solution

The fourth proportional to 256,792.95, 354,384.72 and 142,069.62 is: 196,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,792.95 : 354,384.72 = 142,069.62 : x
  2. Step 2: Convert to fraction form
    256,792.95/354,384.72 = 142,069.62/x
  3. Step 3: Cross multiply
    256,792.95x = 354,384.72 × 142,069.62
  4. Step 4: Simplify right side
    256,792.95x = 50,347,302,504.21
  5. Step 5: Solve for x
    x = 50,347,302,504.21/256,792.95
  6. Step 6: Final answer
    x = 196,061.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.