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Finding the Fourth Proportional to 376,529.65, 564,969.20 and 139,954.45

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Solution

The fourth proportional to 376,529.65, 564,969.20 and 139,954.45 is: 209,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,529.65 : 564,969.20 = 139,954.45 : x
  2. Step 2: Convert to fraction form
    376,529.65/564,969.20 = 139,954.45/x
  3. Step 3: Cross multiply
    376,529.65x = 564,969.20 × 139,954.45
  4. Step 4: Simplify right side
    376,529.65x = 79,069,953,652.94
  5. Step 5: Solve for x
    x = 79,069,953,652.94/376,529.65
  6. Step 6: Final answer
    x = 209,996.62

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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.