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Finding the Fourth Proportional to 348,543.90, 521,433.45 and 302,310.30

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Solution

The fourth proportional to 348,543.90, 521,433.45 and 302,310.30 is: 452,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,543.90 : 521,433.45 = 302,310.30 : x
  2. Step 2: Convert to fraction form
    348,543.90/521,433.45 = 302,310.30/x
  3. Step 3: Cross multiply
    348,543.90x = 521,433.45 × 302,310.30
  4. Step 4: Simplify right side
    348,543.90x = 157,634,702,699.54
  5. Step 5: Solve for x
    x = 157,634,702,699.54/348,543.90
  6. Step 6: Final answer
    x = 452,266.42

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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.