Home / 386,140.28-579,035.45-251,071.16

Finding the Fourth Proportional to 386,140.28, 579,035.45 and 251,071.16

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Solution

The fourth proportional to 386,140.28, 579,035.45 and 251,071.16 is: 376,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,140.28 : 579,035.45 = 251,071.16 : x
  2. Step 2: Convert to fraction form
    386,140.28/579,035.45 = 251,071.16/x
  3. Step 3: Cross multiply
    386,140.28x = 579,035.45 × 251,071.16
  4. Step 4: Simplify right side
    386,140.28x = 145,379,099,845.12
  5. Step 5: Solve for x
    x = 145,379,099,845.12/386,140.28
  6. Step 6: Final answer
    x = 376,492.97

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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.