Home / 288,986.16-398,784.86-161,637.16

Finding the Fourth Proportional to 288,986.16, 398,784.86 and 161,637.16

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Solution

The fourth proportional to 288,986.16, 398,784.86 and 161,637.16 is: 223,050.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,986.16 : 398,784.86 = 161,637.16 : x
  2. Step 2: Convert to fraction form
    288,986.16/398,784.86 = 161,637.16/x
  3. Step 3: Cross multiply
    288,986.16x = 398,784.86 × 161,637.16
  4. Step 4: Simplify right side
    288,986.16x = 64,458,452,221.40
  5. Step 5: Solve for x
    x = 64,458,452,221.40/288,986.16
  6. Step 6: Final answer
    x = 223,050.31

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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.