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Finding the Fourth Proportional to 201,417.20, 302,116.20 and 68,284.40

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Solution

The fourth proportional to 201,417.20, 302,116.20 and 68,284.40 is: 102,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,417.20 : 302,116.20 = 68,284.40 : x
  2. Step 2: Convert to fraction form
    201,417.20/302,116.20 = 68,284.40/x
  3. Step 3: Cross multiply
    201,417.20x = 302,116.20 × 68,284.40
  4. Step 4: Simplify right side
    201,417.20x = 20,629,823,447.28
  5. Step 5: Solve for x
    x = 20,629,823,447.28/201,417.20
  6. Step 6: Final answer
    x = 102,423.35

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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.