Home / 224,039.04-309,180.24-128,562.72

Finding the Fourth Proportional to 224,039.04, 309,180.24 and 128,562.72

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Solution

The fourth proportional to 224,039.04, 309,180.24 and 128,562.72 is: 177,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,039.04 : 309,180.24 = 128,562.72 : x
  2. Step 2: Convert to fraction form
    224,039.04/309,180.24 = 128,562.72/x
  3. Step 3: Cross multiply
    224,039.04x = 309,180.24 × 128,562.72
  4. Step 4: Simplify right side
    224,039.04x = 39,749,052,624.65
  5. Step 5: Solve for x
    x = 39,749,052,624.65/224,039.04
  6. Step 6: Final answer
    x = 177,420.21

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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.