Home / 224,251.70-309,495.18-128,756.34

Finding the Fourth Proportional to 224,251.70, 309,495.18 and 128,756.34

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Solution

The fourth proportional to 224,251.70, 309,495.18 and 128,756.34 is: 177,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,251.70 : 309,495.18 = 128,756.34 : x
  2. Step 2: Convert to fraction form
    224,251.70/309,495.18 = 128,756.34/x
  3. Step 3: Cross multiply
    224,251.70x = 309,495.18 × 128,756.34
  4. Step 4: Simplify right side
    224,251.70x = 39,849,466,624.44
  5. Step 5: Solve for x
    x = 39,849,466,624.44/224,251.70
  6. Step 6: Final answer
    x = 177,699.73

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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.