Home / 208,931.16-288,320.45-113,437.02

Finding the Fourth Proportional to 208,931.16, 288,320.45 and 113,437.02

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Solution

The fourth proportional to 208,931.16, 288,320.45 and 113,437.02 is: 156,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,931.16 : 288,320.45 = 113,437.02 : x
  2. Step 2: Convert to fraction form
    208,931.16/288,320.45 = 113,437.02/x
  3. Step 3: Cross multiply
    208,931.16x = 288,320.45 × 113,437.02
  4. Step 4: Simplify right side
    208,931.16x = 32,706,212,085.87
  5. Step 5: Solve for x
    x = 32,706,212,085.87/208,931.16
  6. Step 6: Final answer
    x = 156,540.61

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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.