Home / 210,728.07-315,759.20-171,091.53

Finding the Fourth Proportional to 210,728.07, 315,759.20 and 171,091.53

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Solution

The fourth proportional to 210,728.07, 315,759.20 and 171,091.53 is: 256,367.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,728.07 : 315,759.20 = 171,091.53 : x
  2. Step 2: Convert to fraction form
    210,728.07/315,759.20 = 171,091.53/x
  3. Step 3: Cross multiply
    210,728.07x = 315,759.20 × 171,091.53
  4. Step 4: Simplify right side
    210,728.07x = 54,023,723,784.12
  5. Step 5: Solve for x
    x = 54,023,723,784.12/210,728.07
  6. Step 6: Final answer
    x = 256,367.00

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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.