Home / 217,433.04-300,060.12-120,638.70

Finding the Fourth Proportional to 217,433.04, 300,060.12 and 120,638.70

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Solution

The fourth proportional to 217,433.04, 300,060.12 and 120,638.70 is: 166,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,433.04 : 300,060.12 = 120,638.70 : x
  2. Step 2: Convert to fraction form
    217,433.04/300,060.12 = 120,638.70/x
  3. Step 3: Cross multiply
    217,433.04x = 300,060.12 × 120,638.70
  4. Step 4: Simplify right side
    217,433.04x = 36,198,862,798.64
  5. Step 5: Solve for x
    x = 36,198,862,798.64/217,433.04
  6. Step 6: Final answer
    x = 166,482.81

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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.