Home / 315,724.14-435,707.87-188,473.59

Finding the Fourth Proportional to 315,724.14, 435,707.87 and 188,473.59

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Solution

The fourth proportional to 315,724.14, 435,707.87 and 188,473.59 is: 260,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,724.14 : 435,707.87 = 188,473.59 : x
  2. Step 2: Convert to fraction form
    315,724.14/435,707.87 = 188,473.59/x
  3. Step 3: Cross multiply
    315,724.14x = 435,707.87 × 188,473.59
  4. Step 4: Simplify right side
    315,724.14x = 82,119,425,507.79
  5. Step 5: Solve for x
    x = 82,119,425,507.79/315,724.14
  6. Step 6: Final answer
    x = 260,098.66

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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.