Home / 210,700.98-290,756.61-115,189.14

Finding the Fourth Proportional to 210,700.98, 290,756.61 and 115,189.14

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Solution

The fourth proportional to 210,700.98, 290,756.61 and 115,189.14 is: 158,955.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,700.98 : 290,756.61 = 115,189.14 : x
  2. Step 2: Convert to fraction form
    210,700.98/290,756.61 = 115,189.14/x
  3. Step 3: Cross multiply
    210,700.98x = 290,756.61 × 115,189.14
  4. Step 4: Simplify right side
    210,700.98x = 33,492,003,855.22
  5. Step 5: Solve for x
    x = 33,492,003,855.22/210,700.98
  6. Step 6: Final answer
    x = 158,955.14

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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.