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Finding the Fourth Proportional to 319,356.95, 479,112.37 and 119,679.10

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Solution

The fourth proportional to 319,356.95, 479,112.37 and 119,679.10 is: 179,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,356.95 : 479,112.37 = 119,679.10 : x
  2. Step 2: Convert to fraction form
    319,356.95/479,112.37 = 119,679.10/x
  3. Step 3: Cross multiply
    319,356.95x = 479,112.37 × 119,679.10
  4. Step 4: Simplify right side
    319,356.95x = 57,339,735,743.49
  5. Step 5: Solve for x
    x = 57,339,735,743.49/319,356.95
  6. Step 6: Final answer
    x = 179,547.48

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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.