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Finding the Fourth Proportional to 489,937.80, 734,906.43 and 153,007.32

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Solution

The fourth proportional to 489,937.80, 734,906.43 and 153,007.32 is: 229,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,937.80 : 734,906.43 = 153,007.32 : x
  2. Step 2: Convert to fraction form
    489,937.80/734,906.43 = 153,007.32/x
  3. Step 3: Cross multiply
    489,937.80x = 734,906.43 × 153,007.32
  4. Step 4: Simplify right side
    489,937.80x = 112,446,063,305.07
  5. Step 5: Solve for x
    x = 112,446,063,305.07/489,937.80
  6. Step 6: Final answer
    x = 229,510.90

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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.