Home / 320,860.50-442,904.14-186,724.50

Finding the Fourth Proportional to 320,860.50, 442,904.14 and 186,724.50

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Solution

The fourth proportional to 320,860.50, 442,904.14 and 186,724.50 is: 257,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,860.50 : 442,904.14 = 186,724.50 : x
  2. Step 2: Convert to fraction form
    320,860.50/442,904.14 = 186,724.50/x
  3. Step 3: Cross multiply
    320,860.50x = 442,904.14 × 186,724.50
  4. Step 4: Simplify right side
    320,860.50x = 82,701,054,089.43
  5. Step 5: Solve for x
    x = 82,701,054,089.43/320,860.50
  6. Step 6: Final answer
    x = 257,747.69

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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.