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Finding the Fourth Proportional to 217,444.01, 300,072.15 and 121,952.77

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Solution

The fourth proportional to 217,444.01, 300,072.15 and 121,952.77 is: 168,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,444.01 : 300,072.15 = 121,952.77 : x
  2. Step 2: Convert to fraction form
    217,444.01/300,072.15 = 121,952.77/x
  3. Step 3: Cross multiply
    217,444.01x = 300,072.15 × 121,952.77
  4. Step 4: Simplify right side
    217,444.01x = 36,594,629,142.18
  5. Step 5: Solve for x
    x = 36,594,629,142.18/217,444.01
  6. Step 6: Final answer
    x = 168,294.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.