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Finding the Fourth Proportional to 201,612.20, 302,418.30 and 103,308.20

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Solution

The fourth proportional to 201,612.20, 302,418.30 and 103,308.20 is: 154,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,612.20 : 302,418.30 = 103,308.20 : x
  2. Step 2: Convert to fraction form
    201,612.20/302,418.30 = 103,308.20/x
  3. Step 3: Cross multiply
    201,612.20x = 302,418.30 × 103,308.20
  4. Step 4: Simplify right side
    201,612.20x = 31,242,290,220.06
  5. Step 5: Solve for x
    x = 31,242,290,220.06/201,612.20
  6. Step 6: Final answer
    x = 154,962.30

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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.