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Finding the Fourth Proportional to 369,839.85, 510,393.47 and 216,856.77

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Solution

The fourth proportional to 369,839.85, 510,393.47 and 216,856.77 is: 299,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,839.85 : 510,393.47 = 216,856.77 : x
  2. Step 2: Convert to fraction form
    369,839.85/510,393.47 = 216,856.77/x
  3. Step 3: Cross multiply
    369,839.85x = 510,393.47 × 216,856.77
  4. Step 4: Simplify right side
    369,839.85x = 110,682,278,249.01
  5. Step 5: Solve for x
    x = 110,682,278,249.01/369,839.85
  6. Step 6: Final answer
    x = 299,270.83

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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.