Home / 251,984.58-347,739.65-138,807.06

Finding the Fourth Proportional to 251,984.58, 347,739.65 and 138,807.06

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Solution

The fourth proportional to 251,984.58, 347,739.65 and 138,807.06 is: 191,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,984.58 : 347,739.65 = 138,807.06 : x
  2. Step 2: Convert to fraction form
    251,984.58/347,739.65 = 138,807.06/x
  3. Step 3: Cross multiply
    251,984.58x = 347,739.65 × 138,807.06
  4. Step 4: Simplify right side
    251,984.58x = 48,268,718,461.93
  5. Step 5: Solve for x
    x = 48,268,718,461.93/251,984.58
  6. Step 6: Final answer
    x = 191,554.25

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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.