Home / 251,510.46-347,086.74-136,790.22

Finding the Fourth Proportional to 251,510.46, 347,086.74 and 136,790.22

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Solution

The fourth proportional to 251,510.46, 347,086.74 and 136,790.22 is: 188,771.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,510.46 : 347,086.74 = 136,790.22 : x
  2. Step 2: Convert to fraction form
    251,510.46/347,086.74 = 136,790.22/x
  3. Step 3: Cross multiply
    251,510.46x = 347,086.74 × 136,790.22
  4. Step 4: Simplify right side
    251,510.46x = 47,478,071,523.68
  5. Step 5: Solve for x
    x = 47,478,071,523.68/251,510.46
  6. Step 6: Final answer
    x = 188,771.76

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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.