Home / 356,313.69-491,711.45-195,168.51

Finding the Fourth Proportional to 356,313.69, 491,711.45 and 195,168.51

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Solution

The fourth proportional to 356,313.69, 491,711.45 and 195,168.51 is: 269,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,313.69 : 491,711.45 = 195,168.51 : x
  2. Step 2: Convert to fraction form
    356,313.69/491,711.45 = 195,168.51/x
  3. Step 3: Cross multiply
    356,313.69x = 491,711.45 × 195,168.51
  4. Step 4: Simplify right side
    356,313.69x = 95,966,590,070.60
  5. Step 5: Solve for x
    x = 95,966,590,070.60/356,313.69
  6. Step 6: Final answer
    x = 269,331.75

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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.