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Finding the Fourth Proportional to 314,920.65, 472,238.82 and 90,229.67

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Solution

The fourth proportional to 314,920.65, 472,238.82 and 90,229.67 is: 135,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,920.65 : 472,238.82 = 90,229.67 : x
  2. Step 2: Convert to fraction form
    314,920.65/472,238.82 = 90,229.67/x
  3. Step 3: Cross multiply
    314,920.65x = 472,238.82 × 90,229.67
  4. Step 4: Simplify right side
    314,920.65x = 42,609,950,528.60
  5. Step 5: Solve for x
    x = 42,609,950,528.60/314,920.65
  6. Step 6: Final answer
    x = 135,303.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.