Home / 356,380.48-534,002.08-261,169.40

Finding the Fourth Proportional to 356,380.48, 534,002.08 and 261,169.40

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Solution

The fourth proportional to 356,380.48, 534,002.08 and 261,169.40 is: 391,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,380.48 : 534,002.08 = 261,169.40 : x
  2. Step 2: Convert to fraction form
    356,380.48/534,002.08 = 261,169.40/x
  3. Step 3: Cross multiply
    356,380.48x = 534,002.08 × 261,169.40
  4. Step 4: Simplify right side
    356,380.48x = 139,465,002,832.35
  5. Step 5: Solve for x
    x = 139,465,002,832.35/356,380.48
  6. Step 6: Final answer
    x = 391,337.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.