Home / 345,839.27-518,807.43-121,148.24

Finding the Fourth Proportional to 345,839.27, 518,807.43 and 121,148.24

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Solution

The fourth proportional to 345,839.27, 518,807.43 and 121,148.24 is: 181,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,839.27 : 518,807.43 = 121,148.24 : x
  2. Step 2: Convert to fraction form
    345,839.27/518,807.43 = 121,148.24/x
  3. Step 3: Cross multiply
    345,839.27x = 518,807.43 × 121,148.24
  4. Step 4: Simplify right side
    345,839.27x = 62,852,607,043.42
  5. Step 5: Solve for x
    x = 62,852,607,043.42/345,839.27
  6. Step 6: Final answer
    x = 181,739.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.