Home / 286,723.50-395,688.57-157,671.81

Finding the Fourth Proportional to 286,723.50, 395,688.57 and 157,671.81

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Solution

The fourth proportional to 286,723.50, 395,688.57 and 157,671.81 is: 217,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,723.50 : 395,688.57 = 157,671.81 : x
  2. Step 2: Convert to fraction form
    286,723.50/395,688.57 = 157,671.81/x
  3. Step 3: Cross multiply
    286,723.50x = 395,688.57 × 157,671.81
  4. Step 4: Simplify right side
    286,723.50x = 62,388,933,028.21
  5. Step 5: Solve for x
    x = 62,388,933,028.21/286,723.50
  6. Step 6: Final answer
    x = 217,592.67

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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.