Home / 210,485.52-290,471.04-114,993.78

Finding the Fourth Proportional to 210,485.52, 290,471.04 and 114,993.78

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Solution

The fourth proportional to 210,485.52, 290,471.04 and 114,993.78 is: 158,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,485.52 : 290,471.04 = 114,993.78 : x
  2. Step 2: Convert to fraction form
    210,485.52/290,471.04 = 114,993.78/x
  3. Step 3: Cross multiply
    210,485.52x = 290,471.04 × 114,993.78
  4. Step 4: Simplify right side
    210,485.52x = 33,402,362,870.13
  5. Step 5: Solve for x
    x = 33,402,362,870.13/210,485.52
  6. Step 6: Final answer
    x = 158,691.97

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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.