Home / 407,133.18-561,911.15-225,903.51

Finding the Fourth Proportional to 407,133.18, 561,911.15 and 225,903.51

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Solution

The fourth proportional to 407,133.18, 561,911.15 and 225,903.51 is: 311,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,133.18 : 561,911.15 = 225,903.51 : x
  2. Step 2: Convert to fraction form
    407,133.18/561,911.15 = 225,903.51/x
  3. Step 3: Cross multiply
    407,133.18x = 561,911.15 × 225,903.51
  4. Step 4: Simplify right side
    407,133.18x = 126,937,701,093.14
  5. Step 5: Solve for x
    x = 126,937,701,093.14/407,133.18
  6. Step 6: Final answer
    x = 311,784.22

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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.