Home / 304,922.78-457,385.18-77,218.28

Finding the Fourth Proportional to 304,922.78, 457,385.18 and 77,218.28

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Solution

The fourth proportional to 304,922.78, 457,385.18 and 77,218.28 is: 115,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,922.78 : 457,385.18 = 77,218.28 : x
  2. Step 2: Convert to fraction form
    304,922.78/457,385.18 = 77,218.28/x
  3. Step 3: Cross multiply
    304,922.78x = 457,385.18 × 77,218.28
  4. Step 4: Simplify right side
    304,922.78x = 35,318,494,224.07
  5. Step 5: Solve for x
    x = 35,318,494,224.07/304,922.78
  6. Step 6: Final answer
    x = 115,827.67

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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.