Home / 209,982.60-314,973.90-130,266.45

Finding the Fourth Proportional to 209,982.60, 314,973.90 and 130,266.45

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Solution

The fourth proportional to 209,982.60, 314,973.90 and 130,266.45 is: 195,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,982.60 : 314,973.90 = 130,266.45 : x
  2. Step 2: Convert to fraction form
    209,982.60/314,973.90 = 130,266.45/x
  3. Step 3: Cross multiply
    209,982.60x = 314,973.90 × 130,266.45
  4. Step 4: Simplify right side
    209,982.60x = 41,030,531,795.66
  5. Step 5: Solve for x
    x = 41,030,531,795.66/209,982.60
  6. Step 6: Final answer
    x = 195,399.68

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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.