Home / 224,110.72-309,253.56-128,615.32

Finding the Fourth Proportional to 224,110.72, 309,253.56 and 128,615.32

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Solution

The fourth proportional to 224,110.72, 309,253.56 and 128,615.32 is: 177,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,110.72 : 309,253.56 = 128,615.32 : x
  2. Step 2: Convert to fraction form
    224,110.72/309,253.56 = 128,615.32/x
  3. Step 3: Cross multiply
    224,110.72x = 309,253.56 × 128,615.32
  4. Step 4: Simplify right side
    224,110.72x = 39,774,745,580.54
  5. Step 5: Solve for x
    x = 39,774,745,580.54/224,110.72
  6. Step 6: Final answer
    x = 177,478.10

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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.