Home / 345,922.60-518,009.10-275,938.60

Finding the Fourth Proportional to 345,922.60, 518,009.10 and 275,938.60

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Solution

The fourth proportional to 345,922.60, 518,009.10 and 275,938.60 is: 413,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,922.60 : 518,009.10 = 275,938.60 : x
  2. Step 2: Convert to fraction form
    345,922.60/518,009.10 = 275,938.60/x
  3. Step 3: Cross multiply
    345,922.60x = 518,009.10 × 275,938.60
  4. Step 4: Simplify right side
    345,922.60x = 142,938,705,841.26
  5. Step 5: Solve for x
    x = 142,938,705,841.26/345,922.60
  6. Step 6: Final answer
    x = 413,210.08

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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.