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Finding the Fourth Proportional to 256,366.23, 384,790.59 and 130,097.13

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Solution

The fourth proportional to 256,366.23, 384,790.59 and 130,097.13 is: 195,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,366.23 : 384,790.59 = 130,097.13 : x
  2. Step 2: Convert to fraction form
    256,366.23/384,790.59 = 130,097.13/x
  3. Step 3: Cross multiply
    256,366.23x = 384,790.59 × 130,097.13
  4. Step 4: Simplify right side
    256,366.23x = 50,060,151,410.01
  5. Step 5: Solve for x
    x = 50,060,151,410.01/256,366.23
  6. Step 6: Final answer
    x = 195,268.12

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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.