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Finding the Fourth Proportional to 343,630.50, 515,455.47 and 94,312.50

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Solution

The fourth proportional to 343,630.50, 515,455.47 and 94,312.50 is: 141,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,630.50 : 515,455.47 = 94,312.50 : x
  2. Step 2: Convert to fraction form
    343,630.50/515,455.47 = 94,312.50/x
  3. Step 3: Cross multiply
    343,630.50x = 515,455.47 × 94,312.50
  4. Step 4: Simplify right side
    343,630.50x = 48,613,894,014.38
  5. Step 5: Solve for x
    x = 48,613,894,014.38/343,630.50
  6. Step 6: Final answer
    x = 141,471.42

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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.