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Finding the Fourth Proportional to 201,317.58, 302,009.13 and 74,958.30

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Solution

The fourth proportional to 201,317.58, 302,009.13 and 74,958.30 is: 112,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,317.58 : 302,009.13 = 74,958.30 : x
  2. Step 2: Convert to fraction form
    201,317.58/302,009.13 = 74,958.30/x
  3. Step 3: Cross multiply
    201,317.58x = 302,009.13 × 74,958.30
  4. Step 4: Simplify right side
    201,317.58x = 22,638,090,969.28
  5. Step 5: Solve for x
    x = 22,638,090,969.28/201,317.58
  6. Step 6: Final answer
    x = 112,449.65

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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.