Home / 305,115.02-457,652-105,438.14

Finding the Fourth Proportional to 305,115.02, 457,652 and 105,438.14

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Solution

The fourth proportional to 305,115.02, 457,652 and 105,438.14 is: 158,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,115.02 : 457,652 = 105,438.14 : x
  2. Step 2: Convert to fraction form
    305,115.02/457,652 = 105,438.14/x
  3. Step 3: Cross multiply
    305,115.02x = 457,652 × 105,438.14
  4. Step 4: Simplify right side
    305,115.02x = 48,253,975,647.28
  5. Step 5: Solve for x
    x = 48,253,975,647.28/305,115.02
  6. Step 6: Final answer
    x = 158,150.12

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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.