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Finding the Fourth Proportional to 224,429.28, 309,824.64 and 139,573.68

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Solution

The fourth proportional to 224,429.28, 309,824.64 and 139,573.68 is: 192,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,429.28 : 309,824.64 = 139,573.68 : x
  2. Step 2: Convert to fraction form
    224,429.28/309,824.64 = 139,573.68/x
  3. Step 3: Cross multiply
    224,429.28x = 309,824.64 × 139,573.68
  4. Step 4: Simplify right side
    224,429.28x = 43,243,365,159.48
  5. Step 5: Solve for x
    x = 43,243,365,159.48/224,429.28
  6. Step 6: Final answer
    x = 192,681.48

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1.5x scale

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.