Home / 251,800.06-347,485.41-138,622.81

Finding the Fourth Proportional to 251,800.06, 347,485.41 and 138,622.81

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Solution

The fourth proportional to 251,800.06, 347,485.41 and 138,622.81 is: 191,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,800.06 : 347,485.41 = 138,622.81 : x
  2. Step 2: Convert to fraction form
    251,800.06/347,485.41 = 138,622.81/x
  3. Step 3: Cross multiply
    251,800.06x = 347,485.41 × 138,622.81
  4. Step 4: Simplify right side
    251,800.06x = 48,169,403,968.20
  5. Step 5: Solve for x
    x = 48,169,403,968.20/251,800.06
  6. Step 6: Final answer
    x = 191,300.21

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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.