Home / 208,810.12-288,157.96-113,316.82

Finding the Fourth Proportional to 208,810.12, 288,157.96 and 113,316.82

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Solution

The fourth proportional to 208,810.12, 288,157.96 and 113,316.82 is: 156,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,810.12 : 288,157.96 = 113,316.82 : x
  2. Step 2: Convert to fraction form
    208,810.12/288,157.96 = 113,316.82/x
  3. Step 3: Cross multiply
    208,810.12x = 288,157.96 × 113,316.82
  4. Step 4: Simplify right side
    208,810.12x = 32,653,143,684.89
  5. Step 5: Solve for x
    x = 32,653,143,684.89/208,810.12
  6. Step 6: Final answer
    x = 156,377.21

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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.