Home / 306,555.13-459,875.07-81,922.89

Finding the Fourth Proportional to 306,555.13, 459,875.07 and 81,922.89

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Solution

The fourth proportional to 306,555.13, 459,875.07 and 81,922.89 is: 122,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,555.13 : 459,875.07 = 81,922.89 : x
  2. Step 2: Convert to fraction form
    306,555.13/459,875.07 = 81,922.89/x
  3. Step 3: Cross multiply
    306,555.13x = 459,875.07 × 81,922.89
  4. Step 4: Simplify right side
    306,555.13x = 37,674,296,497.88
  5. Step 5: Solve for x
    x = 37,674,296,497.88/306,555.13
  6. Step 6: Final answer
    x = 122,895.66

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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.