Home / 210,456.12-290,424.73-114,963.20

Finding the Fourth Proportional to 210,456.12, 290,424.73 and 114,963.20

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Solution

The fourth proportional to 210,456.12, 290,424.73 and 114,963.20 is: 158,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,456.12 : 290,424.73 = 114,963.20 : x
  2. Step 2: Convert to fraction form
    210,456.12/290,424.73 = 114,963.20/x
  3. Step 3: Cross multiply
    210,456.12x = 290,424.73 × 114,963.20
  4. Step 4: Simplify right side
    210,456.12x = 33,388,156,319.94
  5. Step 5: Solve for x
    x = 33,388,156,319.94/210,456.12
  6. Step 6: Final answer
    x = 158,646.64

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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.