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Finding the Fourth Proportional to 188,715.69, 260,509.37 and 134,907.39

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Solution

The fourth proportional to 188,715.69, 260,509.37 and 134,907.39 is: 186,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,715.69 : 260,509.37 = 134,907.39 : x
  2. Step 2: Convert to fraction form
    188,715.69/260,509.37 = 134,907.39/x
  3. Step 3: Cross multiply
    188,715.69x = 260,509.37 × 134,907.39
  4. Step 4: Simplify right side
    188,715.69x = 35,144,638,502.71
  5. Step 5: Solve for x
    x = 35,144,638,502.71/188,715.69
  6. Step 6: Final answer
    x = 186,230.61

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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.