Home / 208,878.41-288,257.43-113,385.10

Finding the Fourth Proportional to 208,878.41, 288,257.43 and 113,385.10

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Solution

The fourth proportional to 208,878.41, 288,257.43 and 113,385.10 is: 156,474.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,878.41 : 288,257.43 = 113,385.10 : x
  2. Step 2: Convert to fraction form
    208,878.41/288,257.43 = 113,385.10/x
  3. Step 3: Cross multiply
    208,878.41x = 288,257.43 × 113,385.10
  4. Step 4: Simplify right side
    208,878.41x = 32,684,097,526.29
  5. Step 5: Solve for x
    x = 32,684,097,526.29/208,878.41
  6. Step 6: Final answer
    x = 156,474.27

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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.