Home / 407,122.17-561,837.60-225,828.21

Finding the Fourth Proportional to 407,122.17, 561,837.60 and 225,828.21

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Solution

The fourth proportional to 407,122.17, 561,837.60 and 225,828.21 is: 311,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,122.17 : 561,837.60 = 225,828.21 : x
  2. Step 2: Convert to fraction form
    407,122.17/561,837.60 = 225,828.21/x
  3. Step 3: Cross multiply
    407,122.17x = 561,837.60 × 225,828.21
  4. Step 4: Simplify right side
    407,122.17x = 126,878,779,518.70
  5. Step 5: Solve for x
    x = 126,878,779,518.70/407,122.17
  6. Step 6: Final answer
    x = 311,647.93

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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.