Home / 319,947.62-479,946.93-109,587.38

Finding the Fourth Proportional to 319,947.62, 479,946.93 and 109,587.38

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Solution

The fourth proportional to 319,947.62, 479,946.93 and 109,587.38 is: 164,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,947.62 : 479,946.93 = 109,587.38 : x
  2. Step 2: Convert to fraction form
    319,947.62/479,946.93 = 109,587.38/x
  3. Step 3: Cross multiply
    319,947.62x = 479,946.93 × 109,587.38
  4. Step 4: Simplify right side
    319,947.62x = 52,596,126,597.74
  5. Step 5: Solve for x
    x = 52,596,126,597.74/319,947.62
  6. Step 6: Final answer
    x = 164,389.80

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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.