Home / 421,321.02-581,355.81-240,036.54

Finding the Fourth Proportional to 421,321.02, 581,355.81 and 240,036.54

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Solution

The fourth proportional to 421,321.02, 581,355.81 and 240,036.54 is: 331,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,321.02 : 581,355.81 = 240,036.54 : x
  2. Step 2: Convert to fraction form
    421,321.02/581,355.81 = 240,036.54/x
  3. Step 3: Cross multiply
    421,321.02x = 581,355.81 × 240,036.54
  4. Step 4: Simplify right side
    421,321.02x = 139,546,637,141.30
  5. Step 5: Solve for x
    x = 139,546,637,141.30/421,321.02
  6. Step 6: Final answer
    x = 331,212.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.