Home / 345,501.25-518,323.56-145,823.29

Finding the Fourth Proportional to 345,501.25, 518,323.56 and 145,823.29

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Solution

The fourth proportional to 345,501.25, 518,323.56 and 145,823.29 is: 218,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,501.25 : 518,323.56 = 145,823.29 : x
  2. Step 2: Convert to fraction form
    345,501.25/518,323.56 = 145,823.29/x
  3. Step 3: Cross multiply
    345,501.25x = 518,323.56 × 145,823.29
  4. Step 4: Simplify right side
    345,501.25x = 75,583,646,803.71
  5. Step 5: Solve for x
    x = 75,583,646,803.71/345,501.25
  6. Step 6: Final answer
    x = 218,765.19

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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.