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Finding the Fourth Proportional to 201,837.60, 302,929.20 and 89,690.40

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Solution

The fourth proportional to 201,837.60, 302,929.20 and 89,690.40 is: 134,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,837.60 : 302,929.20 = 89,690.40 : x
  2. Step 2: Convert to fraction form
    201,837.60/302,929.20 = 89,690.40/x
  3. Step 3: Cross multiply
    201,837.60x = 302,929.20 × 89,690.40
  4. Step 4: Simplify right side
    201,837.60x = 27,169,841,119.68
  5. Step 5: Solve for x
    x = 27,169,841,119.68/201,837.60
  6. Step 6: Final answer
    x = 134,612.39

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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.