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Finding the Fourth Proportional to 318,369.08, 439,344.72 and 175,120.64

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Solution

The fourth proportional to 318,369.08, 439,344.72 and 175,120.64 is: 241,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,369.08 : 439,344.72 = 175,120.64 : x
  2. Step 2: Convert to fraction form
    318,369.08/439,344.72 = 175,120.64/x
  3. Step 3: Cross multiply
    318,369.08x = 439,344.72 × 175,120.64
  4. Step 4: Simplify right side
    318,369.08x = 76,938,328,547.02
  5. Step 5: Solve for x
    x = 76,938,328,547.02/318,369.08
  6. Step 6: Final answer
    x = 241,663.95

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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.