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Finding the Fourth Proportional to 216,025.70, 324,427.35 and 156,928.10

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Solution

The fourth proportional to 216,025.70, 324,427.35 and 156,928.10 is: 235,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,025.70 : 324,427.35 = 156,928.10 : x
  2. Step 2: Convert to fraction form
    216,025.70/324,427.35 = 156,928.10/x
  3. Step 3: Cross multiply
    216,025.70x = 324,427.35 × 156,928.10
  4. Step 4: Simplify right side
    216,025.70x = 50,911,767,623.54
  5. Step 5: Solve for x
    x = 50,911,767,623.54/216,025.70
  6. Step 6: Final answer
    x = 235,674.59

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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.