Home / 305,277.51-457,938.32-80,635.02

Finding the Fourth Proportional to 305,277.51, 457,938.32 and 80,635.02

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Solution

The fourth proportional to 305,277.51, 457,938.32 and 80,635.02 is: 120,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,277.51 : 457,938.32 = 80,635.02 : x
  2. Step 2: Convert to fraction form
    305,277.51/457,938.32 = 80,635.02/x
  3. Step 3: Cross multiply
    305,277.51x = 457,938.32 × 80,635.02
  4. Step 4: Simplify right side
    305,277.51x = 36,925,865,188.79
  5. Step 5: Solve for x
    x = 36,925,865,188.79/305,277.51
  6. Step 6: Final answer
    x = 120,958.35

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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.