Home / 305,068.10-457,625.52-102,665.21

Finding the Fourth Proportional to 305,068.10, 457,625.52 and 102,665.21

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Solution

The fourth proportional to 305,068.10, 457,625.52 and 102,665.21 is: 154,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,068.10 : 457,625.52 = 102,665.21 : x
  2. Step 2: Convert to fraction form
    305,068.10/457,625.52 = 102,665.21/x
  3. Step 3: Cross multiply
    305,068.10x = 457,625.52 × 102,665.21
  4. Step 4: Simplify right side
    305,068.10x = 46,982,217,824.03
  5. Step 5: Solve for x
    x = 46,982,217,824.03/305,068.10
  6. Step 6: Final answer
    x = 154,005.67

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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.