Home / 263,665.68-363,856.78-142,804.20

Finding the Fourth Proportional to 263,665.68, 363,856.78 and 142,804.20

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Solution

The fourth proportional to 263,665.68, 363,856.78 and 142,804.20 is: 197,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,665.68 : 363,856.78 = 142,804.20 : x
  2. Step 2: Convert to fraction form
    263,665.68/363,856.78 = 142,804.20/x
  3. Step 3: Cross multiply
    263,665.68x = 363,856.78 × 142,804.20
  4. Step 4: Simplify right side
    263,665.68x = 51,960,276,382.48
  5. Step 5: Solve for x
    x = 51,960,276,382.48/263,665.68
  6. Step 6: Final answer
    x = 197,068.79

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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.