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Finding the Fourth Proportional to 288,935.55, 403,722.45 and 288,935.55

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Solution

The fourth proportional to 288,935.55, 403,722.45 and 288,935.55 is: 403,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,935.55 : 403,722.45 = 288,935.55 : x
  2. Step 2: Convert to fraction form
    288,935.55/403,722.45 = 288,935.55/x
  3. Step 3: Cross multiply
    288,935.55x = 403,722.45 × 288,935.55
  4. Step 4: Simplify right side
    288,935.55x = 116,649,768,138.10
  5. Step 5: Solve for x
    x = 116,649,768,138.10/288,935.55
  6. Step 6: Final answer
    x = 403,722.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.