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Finding the Fourth Proportional to 263,401.80, 363,510.90 and 148,699.86

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Solution

The fourth proportional to 263,401.80, 363,510.90 and 148,699.86 is: 205,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,401.80 : 363,510.90 = 148,699.86 : x
  2. Step 2: Convert to fraction form
    263,401.80/363,510.90 = 148,699.86/x
  3. Step 3: Cross multiply
    263,401.80x = 363,510.90 × 148,699.86
  4. Step 4: Simplify right side
    263,401.80x = 54,054,019,938.47
  5. Step 5: Solve for x
    x = 54,054,019,938.47/263,401.80
  6. Step 6: Final answer
    x = 205,215.07

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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.