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Finding the Fourth Proportional to 501,128.87, 751,803.87 and 146,170.67

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Solution

The fourth proportional to 501,128.87, 751,803.87 and 146,170.67 is: 219,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,128.87 : 751,803.87 = 146,170.67 : x
  2. Step 2: Convert to fraction form
    501,128.87/751,803.87 = 146,170.67/x
  3. Step 3: Cross multiply
    501,128.87x = 751,803.87 × 146,170.67
  4. Step 4: Simplify right side
    501,128.87x = 109,891,675,386.49
  5. Step 5: Solve for x
    x = 109,891,675,386.49/501,128.87
  6. Step 6: Final answer
    x = 219,288.25

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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.