Home / 208,855.07-288,212.28-113,359.72

Finding the Fourth Proportional to 208,855.07, 288,212.28 and 113,359.72

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Solution

The fourth proportional to 208,855.07, 288,212.28 and 113,359.72 is: 156,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,855.07 : 288,212.28 = 113,359.72 : x
  2. Step 2: Convert to fraction form
    208,855.07/288,212.28 = 113,359.72/x
  3. Step 3: Cross multiply
    208,855.07x = 288,212.28 × 113,359.72
  4. Step 4: Simplify right side
    208,855.07x = 32,671,663,361.36
  5. Step 5: Solve for x
    x = 32,671,663,361.36/208,855.07
  6. Step 6: Final answer
    x = 156,432.23

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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.