Home / 209,275.17-288,811.54-113,779.81

Finding the Fourth Proportional to 209,275.17, 288,811.54 and 113,779.81

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Solution

The fourth proportional to 209,275.17, 288,811.54 and 113,779.81 is: 157,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,275.17 : 288,811.54 = 113,779.81 : x
  2. Step 2: Convert to fraction form
    209,275.17/288,811.54 = 113,779.81/x
  3. Step 3: Cross multiply
    209,275.17x = 288,811.54 × 113,779.81
  4. Step 4: Simplify right side
    209,275.17x = 32,860,922,147.01
  5. Step 5: Solve for x
    x = 32,860,922,147.01/209,275.17
  6. Step 6: Final answer
    x = 157,022.56

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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.