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Finding the Fourth Proportional to 319,981.58, 480,234.72 and 162,255.14

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Solution

The fourth proportional to 319,981.58, 480,234.72 and 162,255.14 is: 243,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,981.58 : 480,234.72 = 162,255.14 : x
  2. Step 2: Convert to fraction form
    319,981.58/480,234.72 = 162,255.14/x
  3. Step 3: Cross multiply
    319,981.58x = 480,234.72 × 162,255.14
  4. Step 4: Simplify right side
    319,981.58x = 77,920,551,726.46
  5. Step 5: Solve for x
    x = 77,920,551,726.46/319,981.58
  6. Step 6: Final answer
    x = 243,515.74

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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.