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Finding the Fourth Proportional to 235,630.20, 353,445.30 and 210,042.30

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Solution

The fourth proportional to 235,630.20, 353,445.30 and 210,042.30 is: 315,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,630.20 : 353,445.30 = 210,042.30 : x
  2. Step 2: Convert to fraction form
    235,630.20/353,445.30 = 210,042.30/x
  3. Step 3: Cross multiply
    235,630.20x = 353,445.30 × 210,042.30
  4. Step 4: Simplify right side
    235,630.20x = 74,238,463,736.19
  5. Step 5: Solve for x
    x = 74,238,463,736.19/235,630.20
  6. Step 6: Final answer
    x = 315,063.45

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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.