Home / 305,268.21-457,972.10-105,588.42

Finding the Fourth Proportional to 305,268.21, 457,972.10 and 105,588.42

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Solution

The fourth proportional to 305,268.21, 457,972.10 and 105,588.42 is: 158,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,268.21 : 457,972.10 = 105,588.42 : x
  2. Step 2: Convert to fraction form
    305,268.21/457,972.10 = 105,588.42/x
  3. Step 3: Cross multiply
    305,268.21x = 457,972.10 × 105,588.42
  4. Step 4: Simplify right side
    305,268.21x = 48,356,549,915.14
  5. Step 5: Solve for x
    x = 48,356,549,915.14/305,268.21
  6. Step 6: Final answer
    x = 158,406.77

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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.