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Finding the Fourth Proportional to 638,887.50, 958,050.59 and 239,247.98

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Solution

The fourth proportional to 638,887.50, 958,050.59 and 239,247.98 is: 358,766.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,887.50 : 958,050.59 = 239,247.98 : x
  2. Step 2: Convert to fraction form
    638,887.50/958,050.59 = 239,247.98/x
  3. Step 3: Cross multiply
    638,887.50x = 958,050.59 × 239,247.98
  4. Step 4: Simplify right side
    638,887.50x = 229,211,666,001.51
  5. Step 5: Solve for x
    x = 229,211,666,001.51/638,887.50
  6. Step 6: Final answer
    x = 358,766.87

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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.