Home / 421,095.72-581,086.50-239,815.26

Finding the Fourth Proportional to 421,095.72, 581,086.50 and 239,815.26

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Solution

The fourth proportional to 421,095.72, 581,086.50 and 239,815.26 is: 330,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,095.72 : 581,086.50 = 239,815.26 : x
  2. Step 2: Convert to fraction form
    421,095.72/581,086.50 = 239,815.26/x
  3. Step 3: Cross multiply
    421,095.72x = 581,086.50 × 239,815.26
  4. Step 4: Simplify right side
    421,095.72x = 139,353,410,079.99
  5. Step 5: Solve for x
    x = 139,353,410,079.99/421,095.72
  6. Step 6: Final answer
    x = 330,930.48

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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.