Home / 210,421.08-290,370.42-114,909.48

Finding the Fourth Proportional to 210,421.08, 290,370.42 and 114,909.48

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Solution

The fourth proportional to 210,421.08, 290,370.42 and 114,909.48 is: 158,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,421.08 : 290,370.42 = 114,909.48 : x
  2. Step 2: Convert to fraction form
    210,421.08/290,370.42 = 114,909.48/x
  3. Step 3: Cross multiply
    210,421.08x = 290,370.42 × 114,909.48
  4. Step 4: Simplify right side
    210,421.08x = 33,366,313,969.58
  5. Step 5: Solve for x
    x = 33,366,313,969.58/210,421.08
  6. Step 6: Final answer
    x = 158,569.26

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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.