Home / 319,664.80-479,254.20-162,006.40

Finding the Fourth Proportional to 319,664.80, 479,254.20 and 162,006.40

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Solution

The fourth proportional to 319,664.80, 479,254.20 and 162,006.40 is: 242,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,664.80 : 479,254.20 = 162,006.40 : x
  2. Step 2: Convert to fraction form
    319,664.80/479,254.20 = 162,006.40/x
  3. Step 3: Cross multiply
    319,664.80x = 479,254.20 × 162,006.40
  4. Step 4: Simplify right side
    319,664.80x = 77,642,247,626.88
  5. Step 5: Solve for x
    x = 77,642,247,626.88/319,664.80
  6. Step 6: Final answer
    x = 242,886.45

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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.