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Finding the Fourth Proportional to 30,149.01, 45,230.01 and 10,160.51

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Solution

The fourth proportional to 30,149.01, 45,230.01 and 10,160.51 is: 15,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.01 : 45,230.01 = 10,160.51 : x
  2. Step 2: Convert to fraction form
    30,149.01/45,230.01 = 10,160.51/x
  3. Step 3: Cross multiply
    30,149.01x = 45,230.01 × 10,160.51
  4. Step 4: Simplify right side
    30,149.01x = 459,559,742.76
  5. Step 5: Solve for x
    x = 459,559,742.76/30,149.01
  6. Step 6: Final answer
    x = 15,242.95

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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.