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Finding the Fourth Proportional to 256,125.10, 384,187.65 and 256,125.10

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Solution

The fourth proportional to 256,125.10, 384,187.65 and 256,125.10 is: 384,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,125.10 : 384,187.65 = 256,125.10 : x
  2. Step 2: Convert to fraction form
    256,125.10/384,187.65 = 256,125.10/x
  3. Step 3: Cross multiply
    256,125.10x = 384,187.65 × 256,125.10
  4. Step 4: Simplify right side
    256,125.10x = 98,400,100,275.02
  5. Step 5: Solve for x
    x = 98,400,100,275.02/256,125.10
  6. Step 6: Final answer
    x = 384,187.65

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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.