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Finding the Fourth Proportional to 201,487.80, 302,145.30 and 101,609.40

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Solution

The fourth proportional to 201,487.80, 302,145.30 and 101,609.40 is: 152,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,487.80 : 302,145.30 = 101,609.40 : x
  2. Step 2: Convert to fraction form
    201,487.80/302,145.30 = 101,609.40/x
  3. Step 3: Cross multiply
    201,487.80x = 302,145.30 × 101,609.40
  4. Step 4: Simplify right side
    201,487.80x = 30,700,802,645.82
  5. Step 5: Solve for x
    x = 30,700,802,645.82/201,487.80
  6. Step 6: Final answer
    x = 152,370.53

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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.