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Finding the Fourth Proportional to 229,257.60, 343,886.40 and 217,010.40

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Solution

The fourth proportional to 229,257.60, 343,886.40 and 217,010.40 is: 325,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,257.60 : 343,886.40 = 217,010.40 : x
  2. Step 2: Convert to fraction form
    229,257.60/343,886.40 = 217,010.40/x
  3. Step 3: Cross multiply
    229,257.60x = 343,886.40 × 217,010.40
  4. Step 4: Simplify right side
    229,257.60x = 74,626,925,218.56
  5. Step 5: Solve for x
    x = 74,626,925,218.56/229,257.60
  6. Step 6: Final answer
    x = 325,515.60

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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.