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Finding the Fourth Proportional to 235,995.40, 353,409.90 and 156,680.20

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Solution

The fourth proportional to 235,995.40, 353,409.90 and 156,680.20 is: 234,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,995.40 : 353,409.90 = 156,680.20 : x
  2. Step 2: Convert to fraction form
    235,995.40/353,409.90 = 156,680.20/x
  3. Step 3: Cross multiply
    235,995.40x = 353,409.90 × 156,680.20
  4. Step 4: Simplify right side
    235,995.40x = 55,372,333,813.98
  5. Step 5: Solve for x
    x = 55,372,333,813.98/235,995.40
  6. Step 6: Final answer
    x = 234,633.11

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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.