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Finding the Fourth Proportional to 423,035.03, 634,236.95 and 254,515.87

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Solution

The fourth proportional to 423,035.03, 634,236.95 and 254,515.87 is: 381,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,035.03 : 634,236.95 = 254,515.87 : x
  2. Step 2: Convert to fraction form
    423,035.03/634,236.95 = 254,515.87/x
  3. Step 3: Cross multiply
    423,035.03x = 634,236.95 × 254,515.87
  4. Step 4: Simplify right side
    423,035.03x = 161,423,368,166.09
  5. Step 5: Solve for x
    x = 161,423,368,166.09/423,035.03
  6. Step 6: Final answer
    x = 381,583.93

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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.