Home / 319,087.17-478,713.78-119,423.25

Finding the Fourth Proportional to 319,087.17, 478,713.78 and 119,423.25

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Solution

The fourth proportional to 319,087.17, 478,713.78 and 119,423.25 is: 179,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,087.17 : 478,713.78 = 119,423.25 : x
  2. Step 2: Convert to fraction form
    319,087.17/478,713.78 = 119,423.25/x
  3. Step 3: Cross multiply
    319,087.17x = 478,713.78 × 119,423.25
  4. Step 4: Simplify right side
    319,087.17x = 57,169,555,427.39
  5. Step 5: Solve for x
    x = 57,169,555,427.39/319,087.17
  6. Step 6: Final answer
    x = 179,165.95

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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.