Home / 397,804.10-548,981.28-216,527.72

Finding the Fourth Proportional to 397,804.10, 548,981.28 and 216,527.72

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Solution

The fourth proportional to 397,804.10, 548,981.28 and 216,527.72 is: 298,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,804.10 : 548,981.28 = 216,527.72 : x
  2. Step 2: Convert to fraction form
    397,804.10/548,981.28 = 216,527.72/x
  3. Step 3: Cross multiply
    397,804.10x = 548,981.28 × 216,527.72
  4. Step 4: Simplify right side
    397,804.10x = 118,869,662,136.18
  5. Step 5: Solve for x
    x = 118,869,662,136.18/397,804.10
  6. Step 6: Final answer
    x = 298,814.58

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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.