Home / 256,316.20-353,701.68-153,066.88

Finding the Fourth Proportional to 256,316.20, 353,701.68 and 153,066.88

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Solution

The fourth proportional to 256,316.20, 353,701.68 and 153,066.88 is: 211,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,316.20 : 353,701.68 = 153,066.88 : x
  2. Step 2: Convert to fraction form
    256,316.20/353,701.68 = 153,066.88/x
  3. Step 3: Cross multiply
    256,316.20x = 353,701.68 × 153,066.88
  4. Step 4: Simplify right side
    256,316.20x = 54,140,012,608.36
  5. Step 5: Solve for x
    x = 54,140,012,608.36/256,316.20
  6. Step 6: Final answer
    x = 211,223.53

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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.