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Finding the Fourth Proportional to 369,418.88, 554,128.32 and 285,301.73

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Solution

The fourth proportional to 369,418.88, 554,128.32 and 285,301.73 is: 427,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,418.88 : 554,128.32 = 285,301.73 : x
  2. Step 2: Convert to fraction form
    369,418.88/554,128.32 = 285,301.73/x
  3. Step 3: Cross multiply
    369,418.88x = 554,128.32 × 285,301.73
  4. Step 4: Simplify right side
    369,418.88x = 158,093,768,337.99
  5. Step 5: Solve for x
    x = 158,093,768,337.99/369,418.88
  6. Step 6: Final answer
    x = 427,952.60

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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.