Home / 224,428.78-309,823.95-139,573.18

Finding the Fourth Proportional to 224,428.78, 309,823.95 and 139,573.18

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Solution

The fourth proportional to 224,428.78, 309,823.95 and 139,573.18 is: 192,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,428.78 : 309,823.95 = 139,573.18 : x
  2. Step 2: Convert to fraction form
    224,428.78/309,823.95 = 139,573.18/x
  3. Step 3: Cross multiply
    224,428.78x = 309,823.95 × 139,573.18
  4. Step 4: Simplify right side
    224,428.78x = 43,243,113,941.66
  5. Step 5: Solve for x
    x = 43,243,113,941.66/224,428.78
  6. Step 6: Final answer
    x = 192,680.79

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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.