Home / 201,948.10-302,922.15-102,415.30

Finding the Fourth Proportional to 201,948.10, 302,922.15 and 102,415.30

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Solution

The fourth proportional to 201,948.10, 302,922.15 and 102,415.30 is: 153,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,948.10 : 302,922.15 = 102,415.30 : x
  2. Step 2: Convert to fraction form
    201,948.10/302,922.15 = 102,415.30/x
  3. Step 3: Cross multiply
    201,948.10x = 302,922.15 × 102,415.30
  4. Step 4: Simplify right side
    201,948.10x = 31,023,862,868.90
  5. Step 5: Solve for x
    x = 31,023,862,868.90/201,948.10
  6. Step 6: Final answer
    x = 153,622.95

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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.