Home / 298,678.24-447,861.81-140,864.32

Finding the Fourth Proportional to 298,678.24, 447,861.81 and 140,864.32

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Solution

The fourth proportional to 298,678.24, 447,861.81 and 140,864.32 is: 211,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,678.24 : 447,861.81 = 140,864.32 : x
  2. Step 2: Convert to fraction form
    298,678.24/447,861.81 = 140,864.32/x
  3. Step 3: Cross multiply
    298,678.24x = 447,861.81 × 140,864.32
  4. Step 4: Simplify right side
    298,678.24x = 63,087,749,319.62
  5. Step 5: Solve for x
    x = 63,087,749,319.62/298,678.24
  6. Step 6: Final answer
    x = 211,223.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.