Home / 208,890.43-288,268.47-113,397.17

Finding the Fourth Proportional to 208,890.43, 288,268.47 and 113,397.17

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Solution

The fourth proportional to 208,890.43, 288,268.47 and 113,397.17 is: 156,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,890.43 : 288,268.47 = 113,397.17 : x
  2. Step 2: Convert to fraction form
    208,890.43/288,268.47 = 113,397.17/x
  3. Step 3: Cross multiply
    208,890.43x = 288,268.47 × 113,397.17
  4. Step 4: Simplify right side
    208,890.43x = 32,688,827,256.89
  5. Step 5: Solve for x
    x = 32,688,827,256.89/208,890.43
  6. Step 6: Final answer
    x = 156,487.91

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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.