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Finding the Fourth Proportional to 201,099.90, 301,649.52 and 51,340.18

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Solution

The fourth proportional to 201,099.90, 301,649.52 and 51,340.18 is: 77,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,099.90 : 301,649.52 = 51,340.18 : x
  2. Step 2: Convert to fraction form
    201,099.90/301,649.52 = 51,340.18/x
  3. Step 3: Cross multiply
    201,099.90x = 301,649.52 × 51,340.18
  4. Step 4: Simplify right side
    201,099.90x = 15,486,740,653.71
  5. Step 5: Solve for x
    x = 15,486,740,653.71/201,099.90
  6. Step 6: Final answer
    x = 77,010.19

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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.