Home / 204,985.20-307,477.80-134,943.60

Finding the Fourth Proportional to 204,985.20, 307,477.80 and 134,943.60

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Solution

The fourth proportional to 204,985.20, 307,477.80 and 134,943.60 is: 202,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,985.20 : 307,477.80 = 134,943.60 : x
  2. Step 2: Convert to fraction form
    204,985.20/307,477.80 = 134,943.60/x
  3. Step 3: Cross multiply
    204,985.20x = 307,477.80 × 134,943.60
  4. Step 4: Simplify right side
    204,985.20x = 41,492,161,252.08
  5. Step 5: Solve for x
    x = 41,492,161,252.08/204,985.20
  6. Step 6: Final answer
    x = 202,415.40

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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.