Home / 210,453.72-290,421.36-114,960.84

Finding the Fourth Proportional to 210,453.72, 290,421.36 and 114,960.84

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Solution

The fourth proportional to 210,453.72, 290,421.36 and 114,960.84 is: 158,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,453.72 : 290,421.36 = 114,960.84 : x
  2. Step 2: Convert to fraction form
    210,453.72/290,421.36 = 114,960.84/x
  3. Step 3: Cross multiply
    210,453.72x = 290,421.36 × 114,960.84
  4. Step 4: Simplify right side
    210,453.72x = 33,387,083,499.54
  5. Step 5: Solve for x
    x = 33,387,083,499.54/210,453.72
  6. Step 6: Final answer
    x = 158,643.35

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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.