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Finding the Fourth Proportional to 256,502.40, 384,062.40 and 201,206.40

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Solution

The fourth proportional to 256,502.40, 384,062.40 and 201,206.40 is: 301,267.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,502.40 : 384,062.40 = 201,206.40 : x
  2. Step 2: Convert to fraction form
    256,502.40/384,062.40 = 201,206.40/x
  3. Step 3: Cross multiply
    256,502.40x = 384,062.40 × 201,206.40
  4. Step 4: Simplify right side
    256,502.40x = 77,275,812,879.36
  5. Step 5: Solve for x
    x = 77,275,812,879.36/256,502.40
  6. Step 6: Final answer
    x = 301,267.41

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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.