Home / 402,945.57-603,656.40-238,136.21

Finding the Fourth Proportional to 402,945.57, 603,656.40 and 238,136.21

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Solution

The fourth proportional to 402,945.57, 603,656.40 and 238,136.21 is: 356,754.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,945.57 : 603,656.40 = 238,136.21 : x
  2. Step 2: Convert to fraction form
    402,945.57/603,656.40 = 238,136.21/x
  3. Step 3: Cross multiply
    402,945.57x = 603,656.40 × 238,136.21
  4. Step 4: Simplify right side
    402,945.57x = 143,752,444,219.96
  5. Step 5: Solve for x
    x = 143,752,444,219.96/402,945.57
  6. Step 6: Final answer
    x = 356,754.00

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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.