Home / 210,012.34-315,019.65-52,240.80

Finding the Fourth Proportional to 210,012.34, 315,019.65 and 52,240.80

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Solution

The fourth proportional to 210,012.34, 315,019.65 and 52,240.80 is: 78,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,012.34 : 315,019.65 = 52,240.80 : x
  2. Step 2: Convert to fraction form
    210,012.34/315,019.65 = 52,240.80/x
  3. Step 3: Cross multiply
    210,012.34x = 315,019.65 × 52,240.80
  4. Step 4: Simplify right side
    210,012.34x = 16,456,876,956.62
  5. Step 5: Solve for x
    x = 16,456,876,956.62/210,012.34
  6. Step 6: Final answer
    x = 78,361.48

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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.