Home / 421,935.32-582,272.60-228,343.06

Finding the Fourth Proportional to 421,935.32, 582,272.60 and 228,343.06

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Solution

The fourth proportional to 421,935.32, 582,272.60 and 228,343.06 is: 315,114.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,935.32 : 582,272.60 = 228,343.06 : x
  2. Step 2: Convert to fraction form
    421,935.32/582,272.60 = 228,343.06/x
  3. Step 3: Cross multiply
    421,935.32x = 582,272.60 × 228,343.06
  4. Step 4: Simplify right side
    421,935.32x = 132,957,908,108.71
  5. Step 5: Solve for x
    x = 132,957,908,108.71/421,935.32
  6. Step 6: Final answer
    x = 315,114.43

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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.