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Finding the Fourth Proportional to 518,158.50, 776,903.76 and 218,558.94

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Solution

The fourth proportional to 518,158.50, 776,903.76 and 218,558.94 is: 327,697.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,158.50 : 776,903.76 = 218,558.94 : x
  2. Step 2: Convert to fraction form
    518,158.50/776,903.76 = 218,558.94/x
  3. Step 3: Cross multiply
    518,158.50x = 776,903.76 × 218,558.94
  4. Step 4: Simplify right side
    518,158.50x = 169,799,262,267.61
  5. Step 5: Solve for x
    x = 169,799,262,267.61/518,158.50
  6. Step 6: Final answer
    x = 327,697.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.