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Finding the Fourth Proportional to 202,802.20, 304,203.30 and 131,943.40

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Solution

The fourth proportional to 202,802.20, 304,203.30 and 131,943.40 is: 197,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,802.20 : 304,203.30 = 131,943.40 : x
  2. Step 2: Convert to fraction form
    202,802.20/304,203.30 = 131,943.40/x
  3. Step 3: Cross multiply
    202,802.20x = 304,203.30 × 131,943.40
  4. Step 4: Simplify right side
    202,802.20x = 40,137,617,693.22
  5. Step 5: Solve for x
    x = 40,137,617,693.22/202,802.20
  6. Step 6: Final answer
    x = 197,915.10

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1.5x scale

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.