Home / 319,516-439,895.60-251,412.96

Finding the Fourth Proportional to 319,516, 439,895.60 and 251,412.96

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Solution

The fourth proportional to 319,516, 439,895.60 and 251,412.96 is: 346,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,516 : 439,895.60 = 251,412.96 : x
  2. Step 2: Convert to fraction form
    319,516/439,895.60 = 251,412.96/x
  3. Step 3: Cross multiply
    319,516x = 439,895.60 × 251,412.96
  4. Step 4: Simplify right side
    319,516x = 110,595,454,886.98
  5. Step 5: Solve for x
    x = 110,595,454,886.98/319,516
  6. Step 6: Final answer
    x = 346,134.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.