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Finding the Fourth Proportional to 371,367.86, 510,517.01 and 319,495.59

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Solution

The fourth proportional to 371,367.86, 510,517.01 and 319,495.59 is: 439,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,367.86 : 510,517.01 = 319,495.59 : x
  2. Step 2: Convert to fraction form
    371,367.86/510,517.01 = 319,495.59/x
  3. Step 3: Cross multiply
    371,367.86x = 510,517.01 × 319,495.59
  4. Step 4: Simplify right side
    371,367.86x = 163,107,934,113.73
  5. Step 5: Solve for x
    x = 163,107,934,113.73/371,367.86
  6. Step 6: Final answer
    x = 439,208.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.