Home / 208,257.99-287,396.22-112,764.45

Finding the Fourth Proportional to 208,257.99, 287,396.22 and 112,764.45

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Solution

The fourth proportional to 208,257.99, 287,396.22 and 112,764.45 is: 155,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,257.99 : 287,396.22 = 112,764.45 : x
  2. Step 2: Convert to fraction form
    208,257.99/287,396.22 = 112,764.45/x
  3. Step 3: Cross multiply
    208,257.99x = 287,396.22 × 112,764.45
  4. Step 4: Simplify right side
    208,257.99x = 32,408,076,680.38
  5. Step 5: Solve for x
    x = 32,408,076,680.38/208,257.99
  6. Step 6: Final answer
    x = 155,615.05

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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.