Home / 287,682.36-396,839.08-180,065.55

Finding the Fourth Proportional to 287,682.36, 396,839.08 and 180,065.55

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Solution

The fourth proportional to 287,682.36, 396,839.08 and 180,065.55 is: 248,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,682.36 : 396,839.08 = 180,065.55 : x
  2. Step 2: Convert to fraction form
    287,682.36/396,839.08 = 180,065.55/x
  3. Step 3: Cross multiply
    287,682.36x = 396,839.08 × 180,065.55
  4. Step 4: Simplify right side
    287,682.36x = 71,457,047,201.69
  5. Step 5: Solve for x
    x = 71,457,047,201.69/287,682.36
  6. Step 6: Final answer
    x = 248,388.70

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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.