Home / 285,203.48-393,580.92-156,150.32

Finding the Fourth Proportional to 285,203.48, 393,580.92 and 156,150.32

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Solution

The fourth proportional to 285,203.48, 393,580.92 and 156,150.32 is: 215,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,203.48 : 393,580.92 = 156,150.32 : x
  2. Step 2: Convert to fraction form
    285,203.48/393,580.92 = 156,150.32/x
  3. Step 3: Cross multiply
    285,203.48x = 393,580.92 × 156,150.32
  4. Step 4: Simplify right side
    285,203.48x = 61,457,786,387.90
  5. Step 5: Solve for x
    x = 61,457,786,387.90/285,203.48
  6. Step 6: Final answer
    x = 215,487.50

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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.