Home / 217,518.57-300,304.32-137,015.10

Finding the Fourth Proportional to 217,518.57, 300,304.32 and 137,015.10

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Solution

The fourth proportional to 217,518.57, 300,304.32 and 137,015.10 is: 189,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,518.57 : 300,304.32 = 137,015.10 : x
  2. Step 2: Convert to fraction form
    217,518.57/300,304.32 = 137,015.10/x
  3. Step 3: Cross multiply
    217,518.57x = 300,304.32 × 137,015.10
  4. Step 4: Simplify right side
    217,518.57x = 41,146,224,248.63
  5. Step 5: Solve for x
    x = 41,146,224,248.63/217,518.57
  6. Step 6: Final answer
    x = 189,161.90

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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.