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Finding the Fourth Proportional to 423,018, 634,544.28 and 107,483.04

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Solution

The fourth proportional to 423,018, 634,544.28 and 107,483.04 is: 161,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,018 : 634,544.28 = 107,483.04 : x
  2. Step 2: Convert to fraction form
    423,018/634,544.28 = 107,483.04/x
  3. Step 3: Cross multiply
    423,018x = 634,544.28 × 107,483.04
  4. Step 4: Simplify right side
    423,018x = 68,202,748,229.01
  5. Step 5: Solve for x
    x = 68,202,748,229.01/423,018
  6. Step 6: Final answer
    x = 161,228.95

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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.