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Finding the Fourth Proportional to 235,433.94, 353,372.85 and 85,818.84

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Solution

The fourth proportional to 235,433.94, 353,372.85 and 85,818.84 is: 128,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,433.94 : 353,372.85 = 85,818.84 : x
  2. Step 2: Convert to fraction form
    235,433.94/353,372.85 = 85,818.84/x
  3. Step 3: Cross multiply
    235,433.94x = 353,372.85 × 85,818.84
  4. Step 4: Simplify right side
    235,433.94x = 30,326,048,074.49
  5. Step 5: Solve for x
    x = 30,326,048,074.49/235,433.94
  6. Step 6: Final answer
    x = 128,809.16

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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.