Home / 407,070.18-561,756.96-225,775.98

Finding the Fourth Proportional to 407,070.18, 561,756.96 and 225,775.98

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Solution

The fourth proportional to 407,070.18, 561,756.96 and 225,775.98 is: 311,570.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,070.18 : 561,756.96 = 225,775.98 : x
  2. Step 2: Convert to fraction form
    407,070.18/561,756.96 = 225,775.98/x
  3. Step 3: Cross multiply
    407,070.18x = 561,756.96 × 225,775.98
  4. Step 4: Simplify right side
    407,070.18x = 126,831,228,165.82
  5. Step 5: Solve for x
    x = 126,831,228,165.82/407,070.18
  6. Step 6: Final answer
    x = 311,570.91

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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.