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Finding the Fourth Proportional to 145,066.95, 217,469.21 and 51,550.83

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Solution

The fourth proportional to 145,066.95, 217,469.21 and 51,550.83 is: 77,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,066.95 : 217,469.21 = 51,550.83 : x
  2. Step 2: Convert to fraction form
    145,066.95/217,469.21 = 51,550.83/x
  3. Step 3: Cross multiply
    145,066.95x = 217,469.21 × 51,550.83
  4. Step 4: Simplify right side
    145,066.95x = 11,210,718,017.19
  5. Step 5: Solve for x
    x = 11,210,718,017.19/145,066.95
  6. Step 6: Final answer
    x = 77,279.61

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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.