Home / 224,640.08-310,019.64-129,176.72

Finding the Fourth Proportional to 224,640.08, 310,019.64 and 129,176.72

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Solution

The fourth proportional to 224,640.08, 310,019.64 and 129,176.72 is: 178,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,640.08 : 310,019.64 = 129,176.72 : x
  2. Step 2: Convert to fraction form
    224,640.08/310,019.64 = 129,176.72/x
  3. Step 3: Cross multiply
    224,640.08x = 310,019.64 × 129,176.72
  4. Step 4: Simplify right side
    224,640.08x = 40,047,320,230.78
  5. Step 5: Solve for x
    x = 40,047,320,230.78/224,640.08
  6. Step 6: Final answer
    x = 178,273.26

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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.