Home / 209,904.20-314,856.30-135,254.60

Finding the Fourth Proportional to 209,904.20, 314,856.30 and 135,254.60

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Solution

The fourth proportional to 209,904.20, 314,856.30 and 135,254.60 is: 202,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,904.20 : 314,856.30 = 135,254.60 : x
  2. Step 2: Convert to fraction form
    209,904.20/314,856.30 = 135,254.60/x
  3. Step 3: Cross multiply
    209,904.20x = 314,856.30 × 135,254.60
  4. Step 4: Simplify right side
    209,904.20x = 42,585,762,913.98
  5. Step 5: Solve for x
    x = 42,585,762,913.98/209,904.20
  6. Step 6: Final answer
    x = 202,881.90

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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.