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Finding the Fourth Proportional to 288,774.24, 398,515.32 and 161,448.72

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Solution

The fourth proportional to 288,774.24, 398,515.32 and 161,448.72 is: 222,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,774.24 : 398,515.32 = 161,448.72 : x
  2. Step 2: Convert to fraction form
    288,774.24/398,515.32 = 161,448.72/x
  3. Step 3: Cross multiply
    288,774.24x = 398,515.32 × 161,448.72
  4. Step 4: Simplify right side
    288,774.24x = 64,339,788,314.39
  5. Step 5: Solve for x
    x = 64,339,788,314.39/288,774.24
  6. Step 6: Final answer
    x = 222,803.07

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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.