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Finding the Fourth Proportional to 235,322.62, 352,422.70 and 128,547.20

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Solution

The fourth proportional to 235,322.62, 352,422.70 and 128,547.20 is: 192,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,322.62 : 352,422.70 = 128,547.20 : x
  2. Step 2: Convert to fraction form
    235,322.62/352,422.70 = 128,547.20/x
  3. Step 3: Cross multiply
    235,322.62x = 352,422.70 × 128,547.20
  4. Step 4: Simplify right side
    235,322.62x = 45,302,951,861.13
  5. Step 5: Solve for x
    x = 45,302,951,861.13/235,322.62
  6. Step 6: Final answer
    x = 192,514.23

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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.