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Finding the Fourth Proportional to 376,449.18, 564,894.10 and 139,955.10

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Solution

The fourth proportional to 376,449.18, 564,894.10 and 139,955.10 is: 210,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,449.18 : 564,894.10 = 139,955.10 : x
  2. Step 2: Convert to fraction form
    376,449.18/564,894.10 = 139,955.10/x
  3. Step 3: Cross multiply
    376,449.18x = 564,894.10 × 139,955.10
  4. Step 4: Simplify right side
    376,449.18x = 79,059,810,254.91
  5. Step 5: Solve for x
    x = 79,059,810,254.91/376,449.18
  6. Step 6: Final answer
    x = 210,014.56

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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.