Home / 224,403.23-309,729.60-128,965.25

Finding the Fourth Proportional to 224,403.23, 309,729.60 and 128,965.25

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Solution

The fourth proportional to 224,403.23, 309,729.60 and 128,965.25 is: 178,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,403.23 : 309,729.60 = 128,965.25 : x
  2. Step 2: Convert to fraction form
    224,403.23/309,729.60 = 128,965.25/x
  3. Step 3: Cross multiply
    224,403.23x = 309,729.60 × 128,965.25
  4. Step 4: Simplify right side
    224,403.23x = 39,944,353,747.75
  5. Step 5: Solve for x
    x = 39,944,353,747.75/224,403.23
  6. Step 6: Final answer
    x = 178,002.58

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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.