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Finding the Fourth Proportional to 301,589.74, 451,695.40 and 143,928.91

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Solution

The fourth proportional to 301,589.74, 451,695.40 and 143,928.91 is: 215,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,589.74 : 451,695.40 = 143,928.91 : x
  2. Step 2: Convert to fraction form
    301,589.74/451,695.40 = 143,928.91/x
  3. Step 3: Cross multiply
    301,589.74x = 451,695.40 × 143,928.91
  4. Step 4: Simplify right side
    301,589.74x = 65,012,025,084.95
  5. Step 5: Solve for x
    x = 65,012,025,084.95/301,589.74
  6. Step 6: Final answer
    x = 215,564.45

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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.