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Finding the Fourth Proportional to 551,381.00, 760,922.91 and 309,668.81

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Solution

The fourth proportional to 551,381.00, 760,922.91 and 309,668.81 is: 427,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,381.00 : 760,922.91 = 309,668.81 : x
  2. Step 2: Convert to fraction form
    551,381.00/760,922.91 = 309,668.81/x
  3. Step 3: Cross multiply
    551,381.00x = 760,922.91 × 309,668.81
  4. Step 4: Simplify right side
    551,381.00x = 235,634,088,236.82
  5. Step 5: Solve for x
    x = 235,634,088,236.82/551,381.00
  6. Step 6: Final answer
    x = 427,352.58

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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.