Home / 405,524.48-608,280.08-121,215.76

Finding the Fourth Proportional to 405,524.48, 608,280.08 and 121,215.76

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Solution

The fourth proportional to 405,524.48, 608,280.08 and 121,215.76 is: 181,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,524.48 : 608,280.08 = 121,215.76 : x
  2. Step 2: Convert to fraction form
    405,524.48/608,280.08 = 121,215.76/x
  3. Step 3: Cross multiply
    405,524.48x = 608,280.08 × 121,215.76
  4. Step 4: Simplify right side
    405,524.48x = 73,733,132,190.06
  5. Step 5: Solve for x
    x = 73,733,132,190.06/405,524.48
  6. Step 6: Final answer
    x = 181,821.66

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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.