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Finding the Fourth Proportional to 219,670.76, 329,441.55 and 93,310

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Solution

The fourth proportional to 219,670.76, 329,441.55 and 93,310 is: 139,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,670.76 : 329,441.55 = 93,310 : x
  2. Step 2: Convert to fraction form
    219,670.76/329,441.55 = 93,310/x
  3. Step 3: Cross multiply
    219,670.76x = 329,441.55 × 93,310
  4. Step 4: Simplify right side
    219,670.76x = 30,740,191,030.50
  5. Step 5: Solve for x
    x = 30,740,191,030.50/219,670.76
  6. Step 6: Final answer
    x = 139,937.56

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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.