Home / 231,328.10-347,510.55-221,881.70

Finding the Fourth Proportional to 231,328.10, 347,510.55 and 221,881.70

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Solution

The fourth proportional to 231,328.10, 347,510.55 and 221,881.70 is: 333,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,328.10 : 347,510.55 = 221,881.70 : x
  2. Step 2: Convert to fraction form
    231,328.10/347,510.55 = 221,881.70/x
  3. Step 3: Cross multiply
    231,328.10x = 347,510.55 × 221,881.70
  4. Step 4: Simplify right side
    231,328.10x = 77,106,231,601.94
  5. Step 5: Solve for x
    x = 77,106,231,601.94/231,328.10
  6. Step 6: Final answer
    x = 333,319.78

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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.