Home / 285,334.02-393,765.36-156,270.12

Finding the Fourth Proportional to 285,334.02, 393,765.36 and 156,270.12

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Solution

The fourth proportional to 285,334.02, 393,765.36 and 156,270.12 is: 215,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,334.02 : 393,765.36 = 156,270.12 : x
  2. Step 2: Convert to fraction form
    285,334.02/393,765.36 = 156,270.12/x
  3. Step 3: Cross multiply
    285,334.02x = 393,765.36 × 156,270.12
  4. Step 4: Simplify right side
    285,334.02x = 61,533,760,059.04
  5. Step 5: Solve for x
    x = 61,533,760,059.04/285,334.02
  6. Step 6: Final answer
    x = 215,655.18

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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.