Home / 407,075.12-561,740.75-225,774.03

Finding the Fourth Proportional to 407,075.12, 561,740.75 and 225,774.03

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Solution

The fourth proportional to 407,075.12, 561,740.75 and 225,774.03 is: 311,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,075.12 : 561,740.75 = 225,774.03 : x
  2. Step 2: Convert to fraction form
    407,075.12/561,740.75 = 225,774.03/x
  3. Step 3: Cross multiply
    407,075.12x = 561,740.75 × 225,774.03
  4. Step 4: Simplify right side
    407,075.12x = 126,826,472,942.72
  5. Step 5: Solve for x
    x = 126,826,472,942.72/407,075.12
  6. Step 6: Final answer
    x = 311,555.46

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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.