Home / 280,100.11-386,570.83-159,259.50

Finding the Fourth Proportional to 280,100.11, 386,570.83 and 159,259.50

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Solution

The fourth proportional to 280,100.11, 386,570.83 and 159,259.50 is: 219,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,100.11 : 386,570.83 = 159,259.50 : x
  2. Step 2: Convert to fraction form
    280,100.11/386,570.83 = 159,259.50/x
  3. Step 3: Cross multiply
    280,100.11x = 386,570.83 × 159,259.50
  4. Step 4: Simplify right side
    280,100.11x = 61,565,076,702.24
  5. Step 5: Solve for x
    x = 61,565,076,702.24/280,100.11
  6. Step 6: Final answer
    x = 219,796.69

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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.