Home / 287,726.49-396,899.73-180,109.62

Finding the Fourth Proportional to 287,726.49, 396,899.73 and 180,109.62

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Solution

The fourth proportional to 287,726.49, 396,899.73 and 180,109.62 is: 248,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,726.49 : 396,899.73 = 180,109.62 : x
  2. Step 2: Convert to fraction form
    287,726.49/396,899.73 = 180,109.62/x
  3. Step 3: Cross multiply
    287,726.49x = 396,899.73 × 180,109.62
  4. Step 4: Simplify right side
    287,726.49x = 71,485,459,548.40
  5. Step 5: Solve for x
    x = 71,485,459,548.40/287,726.49
  6. Step 6: Final answer
    x = 248,449.35

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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.