Home / 251,979.56-347,731.80-138,802.31

Finding the Fourth Proportional to 251,979.56, 347,731.80 and 138,802.31

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Solution

The fourth proportional to 251,979.56, 347,731.80 and 138,802.31 is: 191,547.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,979.56 : 347,731.80 = 138,802.31 : x
  2. Step 2: Convert to fraction form
    251,979.56/347,731.80 = 138,802.31/x
  3. Step 3: Cross multiply
    251,979.56x = 347,731.80 × 138,802.31
  4. Step 4: Simplify right side
    251,979.56x = 48,265,977,449.28
  5. Step 5: Solve for x
    x = 48,265,977,449.28/251,979.56
  6. Step 6: Final answer
    x = 191,547.19

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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.