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Finding the Fourth Proportional to 224,322.59, 309,613.07 and 128,881.91

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Solution

The fourth proportional to 224,322.59, 309,613.07 and 128,881.91 is: 177,884.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,322.59 : 309,613.07 = 128,881.91 : x
  2. Step 2: Convert to fraction form
    224,322.59/309,613.07 = 128,881.91/x
  3. Step 3: Cross multiply
    224,322.59x = 309,613.07 × 128,881.91
  4. Step 4: Simplify right side
    224,322.59x = 39,903,522,274.50
  5. Step 5: Solve for x
    x = 39,903,522,274.50/224,322.59
  6. Step 6: Final answer
    x = 177,884.55

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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.