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Finding the Fourth Proportional to 224,010.04, 309,140.22 and 128,533.72

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Solution

The fourth proportional to 224,010.04, 309,140.22 and 128,533.72 is: 177,380.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,010.04 : 309,140.22 = 128,533.72 : x
  2. Step 2: Convert to fraction form
    224,010.04/309,140.22 = 128,533.72/x
  3. Step 3: Cross multiply
    224,010.04x = 309,140.22 × 128,533.72
  4. Step 4: Simplify right side
    224,010.04x = 39,734,942,478.22
  5. Step 5: Solve for x
    x = 39,734,942,478.22/224,010.04
  6. Step 6: Final answer
    x = 177,380.19

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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.