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Finding the Fourth Proportional to 201,730.60, 302,595.90 and 91,138.60

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Solution

The fourth proportional to 201,730.60, 302,595.90 and 91,138.60 is: 136,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,730.60 : 302,595.90 = 91,138.60 : x
  2. Step 2: Convert to fraction form
    201,730.60/302,595.90 = 91,138.60/x
  3. Step 3: Cross multiply
    201,730.60x = 302,595.90 × 91,138.60
  4. Step 4: Simplify right side
    201,730.60x = 27,578,166,691.74
  5. Step 5: Solve for x
    x = 27,578,166,691.74/201,730.60
  6. Step 6: Final answer
    x = 136,707.90

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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.