Home / 215,126.80-322,690.20-155,683.60

Finding the Fourth Proportional to 215,126.80, 322,690.20 and 155,683.60

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Solution

The fourth proportional to 215,126.80, 322,690.20 and 155,683.60 is: 233,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,126.80 : 322,690.20 = 155,683.60 : x
  2. Step 2: Convert to fraction form
    215,126.80/322,690.20 = 155,683.60/x
  3. Step 3: Cross multiply
    215,126.80x = 322,690.20 × 155,683.60
  4. Step 4: Simplify right side
    215,126.80x = 50,237,572,020.72
  5. Step 5: Solve for x
    x = 50,237,572,020.72/215,126.80
  6. Step 6: Final answer
    x = 233,525.40

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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.