Home / 210,500.58-290,494.98-115,013.20

Finding the Fourth Proportional to 210,500.58, 290,494.98 and 115,013.20

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Solution

The fourth proportional to 210,500.58, 290,494.98 and 115,013.20 is: 158,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,500.58 : 290,494.98 = 115,013.20 : x
  2. Step 2: Convert to fraction form
    210,500.58/290,494.98 = 115,013.20/x
  3. Step 3: Cross multiply
    210,500.58x = 290,494.98 × 115,013.20
  4. Step 4: Simplify right side
    210,500.58x = 33,410,757,233.74
  5. Step 5: Solve for x
    x = 33,410,757,233.74/210,500.58
  6. Step 6: Final answer
    x = 158,720.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.