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Finding the Fourth Proportional to 188,515, 260,151.24 and 103,632.67

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Solution

The fourth proportional to 188,515, 260,151.24 and 103,632.67 is: 143,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,515 : 260,151.24 = 103,632.67 : x
  2. Step 2: Convert to fraction form
    188,515/260,151.24 = 103,632.67/x
  3. Step 3: Cross multiply
    188,515x = 260,151.24 × 103,632.67
  4. Step 4: Simplify right side
    188,515x = 26,960,167,605.01
  5. Step 5: Solve for x
    x = 26,960,167,605.01/188,515
  6. Step 6: Final answer
    x = 143,013.38

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1.5x scale

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.