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Finding the Fourth Proportional to 425,309.16, 637,976.05 and 159,018.83

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Solution

The fourth proportional to 425,309.16, 637,976.05 and 159,018.83 is: 238,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,309.16 : 637,976.05 = 159,018.83 : x
  2. Step 2: Convert to fraction form
    425,309.16/637,976.05 = 159,018.83/x
  3. Step 3: Cross multiply
    425,309.16x = 637,976.05 × 159,018.83
  4. Step 4: Simplify right side
    425,309.16x = 101,450,203,844.00
  5. Step 5: Solve for x
    x = 101,450,203,844.00/425,309.16
  6. Step 6: Final answer
    x = 238,532.84

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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.