Home / 230,256.05-317,748.56-128,281.37

Finding the Fourth Proportional to 230,256.05, 317,748.56 and 128,281.37

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Solution

The fourth proportional to 230,256.05, 317,748.56 and 128,281.37 is: 177,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,256.05 : 317,748.56 = 128,281.37 : x
  2. Step 2: Convert to fraction form
    230,256.05/317,748.56 = 128,281.37/x
  3. Step 3: Cross multiply
    230,256.05x = 317,748.56 × 128,281.37
  4. Step 4: Simplify right side
    230,256.05x = 40,761,218,362.18
  5. Step 5: Solve for x
    x = 40,761,218,362.18/230,256.05
  6. Step 6: Final answer
    x = 177,025.62

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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.