Home / 319,083.12-478,624.16-148,211.39

Finding the Fourth Proportional to 319,083.12, 478,624.16 and 148,211.39

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Solution

The fourth proportional to 319,083.12, 478,624.16 and 148,211.39 is: 222,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,083.12 : 478,624.16 = 148,211.39 : x
  2. Step 2: Convert to fraction form
    319,083.12/478,624.16 = 148,211.39/x
  3. Step 3: Cross multiply
    319,083.12x = 478,624.16 × 148,211.39
  4. Step 4: Simplify right side
    319,083.12x = 70,937,548,907.00
  5. Step 5: Solve for x
    x = 70,937,548,907.00/319,083.12
  6. Step 6: Final answer
    x = 222,316.83

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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.