Home / 340,316.23-510,474.36-90,991.75

Finding the Fourth Proportional to 340,316.23, 510,474.36 and 90,991.75

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Solution

The fourth proportional to 340,316.23, 510,474.36 and 90,991.75 is: 136,487.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,316.23 : 510,474.36 = 90,991.75 : x
  2. Step 2: Convert to fraction form
    340,316.23/510,474.36 = 90,991.75/x
  3. Step 3: Cross multiply
    340,316.23x = 510,474.36 × 90,991.75
  4. Step 4: Simplify right side
    340,316.23x = 46,448,955,346.53
  5. Step 5: Solve for x
    x = 46,448,955,346.53/340,316.23
  6. Step 6: Final answer
    x = 136,487.63

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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.