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Finding the Fourth Proportional to 285,359.86, 392,900.35 and 242,249.99

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Solution

The fourth proportional to 285,359.86, 392,900.35 and 242,249.99 is: 333,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,359.86 : 392,900.35 = 242,249.99 : x
  2. Step 2: Convert to fraction form
    285,359.86/392,900.35 = 242,249.99/x
  3. Step 3: Cross multiply
    285,359.86x = 392,900.35 × 242,249.99
  4. Step 4: Simplify right side
    285,359.86x = 95,180,103,893.99
  5. Step 5: Solve for x
    x = 95,180,103,893.99/285,359.86
  6. Step 6: Final answer
    x = 333,544.13

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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.