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Finding the Fourth Proportional to 208,981.95, 288,483.38 and 141,090.89

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Solution

The fourth proportional to 208,981.95, 288,483.38 and 141,090.89 is: 194,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,981.95 : 288,483.38 = 141,090.89 : x
  2. Step 2: Convert to fraction form
    208,981.95/288,483.38 = 141,090.89/x
  3. Step 3: Cross multiply
    208,981.95x = 288,483.38 × 141,090.89
  4. Step 4: Simplify right side
    208,981.95x = 40,702,375,039.26
  5. Step 5: Solve for x
    x = 40,702,375,039.26/208,981.95
  6. Step 6: Final answer
    x = 194,765.02

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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.