Home / 319,559.86-440,992.56-176,320.18

Finding the Fourth Proportional to 319,559.86, 440,992.56 and 176,320.18

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Solution

The fourth proportional to 319,559.86, 440,992.56 and 176,320.18 is: 243,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,559.86 : 440,992.56 = 176,320.18 : x
  2. Step 2: Convert to fraction form
    319,559.86/440,992.56 = 176,320.18/x
  3. Step 3: Cross multiply
    319,559.86x = 440,992.56 × 176,320.18
  4. Step 4: Simplify right side
    319,559.86x = 77,755,887,557.86
  5. Step 5: Solve for x
    x = 77,755,887,557.86/319,559.86
  6. Step 6: Final answer
    x = 243,321.82

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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.