Home / 421,718.04-581,913.42-251,916.12

Finding the Fourth Proportional to 421,718.04, 581,913.42 and 251,916.12

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Solution

The fourth proportional to 421,718.04, 581,913.42 and 251,916.12 is: 347,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,718.04 : 581,913.42 = 251,916.12 : x
  2. Step 2: Convert to fraction form
    421,718.04/581,913.42 = 251,916.12/x
  3. Step 3: Cross multiply
    421,718.04x = 581,913.42 × 251,916.12
  4. Step 4: Simplify right side
    421,718.04x = 146,593,370,942.33
  5. Step 5: Solve for x
    x = 146,593,370,942.33/421,718.04
  6. Step 6: Final answer
    x = 347,609.91

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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.