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Finding the Fourth Proportional to 201,210.90, 301,624.35 and 74,817.30

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Solution

The fourth proportional to 201,210.90, 301,624.35 and 74,817.30 is: 112,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,210.90 : 301,624.35 = 74,817.30 : x
  2. Step 2: Convert to fraction form
    201,210.90/301,624.35 = 74,817.30/x
  3. Step 3: Cross multiply
    201,210.90x = 301,624.35 × 74,817.30
  4. Step 4: Simplify right side
    201,210.90x = 22,566,719,481.26
  5. Step 5: Solve for x
    x = 22,566,719,481.26/201,210.90
  6. Step 6: Final answer
    x = 112,154.56

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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.