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Finding the Fourth Proportional to 525,375.82, 787,985.25 and 146,256.94

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Solution

The fourth proportional to 525,375.82, 787,985.25 and 146,256.94 is: 219,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,375.82 : 787,985.25 = 146,256.94 : x
  2. Step 2: Convert to fraction form
    525,375.82/787,985.25 = 146,256.94/x
  3. Step 3: Cross multiply
    525,375.82x = 787,985.25 × 146,256.94
  4. Step 4: Simplify right side
    525,375.82x = 115,248,311,430.14
  5. Step 5: Solve for x
    x = 115,248,311,430.14/525,375.82
  6. Step 6: Final answer
    x = 219,363.56

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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.