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Finding the Fourth Proportional to 319,776.69, 479,626.83 and 248,770.20

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Solution

The fourth proportional to 319,776.69, 479,626.83 and 248,770.20 is: 373,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,776.69 : 479,626.83 = 248,770.20 : x
  2. Step 2: Convert to fraction form
    319,776.69/479,626.83 = 248,770.20/x
  3. Step 3: Cross multiply
    319,776.69x = 479,626.83 × 248,770.20
  4. Step 4: Simplify right side
    319,776.69x = 119,316,862,424.47
  5. Step 5: Solve for x
    x = 119,316,862,424.47/319,776.69
  6. Step 6: Final answer
    x = 373,125.58

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1.5x scale

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.