Home / 407,156.40-561,875.34-225,895.80

Finding the Fourth Proportional to 407,156.40, 561,875.34 and 225,895.80

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Solution

The fourth proportional to 407,156.40, 561,875.34 and 225,895.80 is: 311,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,156.40 : 561,875.34 = 225,895.80 : x
  2. Step 2: Convert to fraction form
    407,156.40/561,875.34 = 225,895.80/x
  3. Step 3: Cross multiply
    407,156.40x = 561,875.34 × 225,895.80
  4. Step 4: Simplify right side
    407,156.40x = 126,925,279,429.57
  5. Step 5: Solve for x
    x = 126,925,279,429.57/407,156.40
  6. Step 6: Final answer
    x = 311,735.93

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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.