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Finding the Fourth Proportional to 288,533.34, 398,226.78 and 167,712.12

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Solution

The fourth proportional to 288,533.34, 398,226.78 and 167,712.12 is: 231,472.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,533.34 : 398,226.78 = 167,712.12 : x
  2. Step 2: Convert to fraction form
    288,533.34/398,226.78 = 167,712.12/x
  3. Step 3: Cross multiply
    288,533.34x = 398,226.78 × 167,712.12
  4. Step 4: Simplify right side
    288,533.34x = 66,787,457,514.57
  5. Step 5: Solve for x
    x = 66,787,457,514.57/288,533.34
  6. Step 6: Final answer
    x = 231,472.24

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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.