Home / 291,965.40-437,943.78-158,814.36

Finding the Fourth Proportional to 291,965.40, 437,943.78 and 158,814.36

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Solution

The fourth proportional to 291,965.40, 437,943.78 and 158,814.36 is: 238,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,965.40 : 437,943.78 = 158,814.36 : x
  2. Step 2: Convert to fraction form
    291,965.40/437,943.78 = 158,814.36/x
  3. Step 3: Cross multiply
    291,965.40x = 437,943.78 × 158,814.36
  4. Step 4: Simplify right side
    291,965.40x = 69,551,761,136.68
  5. Step 5: Solve for x
    x = 69,551,761,136.68/291,965.40
  6. Step 6: Final answer
    x = 238,219.19

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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.