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Finding the Fourth Proportional to 445,859.02, 668,648.03 and 146,269.79

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Solution

The fourth proportional to 445,859.02, 668,648.03 and 146,269.79 is: 219,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,859.02 : 668,648.03 = 146,269.79 : x
  2. Step 2: Convert to fraction form
    445,859.02/668,648.03 = 146,269.79/x
  3. Step 3: Cross multiply
    445,859.02x = 668,648.03 × 146,269.79
  4. Step 4: Simplify right side
    445,859.02x = 97,803,005,364.85
  5. Step 5: Solve for x
    x = 97,803,005,364.85/445,859.02
  6. Step 6: Final answer
    x = 219,358.59

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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.