Home / 210,215.25-290,103.20-114,728.07

Finding the Fourth Proportional to 210,215.25, 290,103.20 and 114,728.07

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Solution

The fourth proportional to 210,215.25, 290,103.20 and 114,728.07 is: 158,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,215.25 : 290,103.20 = 114,728.07 : x
  2. Step 2: Convert to fraction form
    210,215.25/290,103.20 = 114,728.07/x
  3. Step 3: Cross multiply
    210,215.25x = 290,103.20 × 114,728.07
  4. Step 4: Simplify right side
    210,215.25x = 33,282,979,663.18
  5. Step 5: Solve for x
    x = 33,282,979,663.18/210,215.25
  6. Step 6: Final answer
    x = 158,328.09

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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.