Home / 210,466.32-290,391.48-135,116.88

Finding the Fourth Proportional to 210,466.32, 290,391.48 and 135,116.88

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Solution

The fourth proportional to 210,466.32, 290,391.48 and 135,116.88 is: 186,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,466.32 : 290,391.48 = 135,116.88 : x
  2. Step 2: Convert to fraction form
    210,466.32/290,391.48 = 135,116.88/x
  3. Step 3: Cross multiply
    210,466.32x = 290,391.48 × 135,116.88
  4. Step 4: Simplify right side
    210,466.32x = 39,236,790,756.18
  5. Step 5: Solve for x
    x = 39,236,790,756.18/210,466.32
  6. Step 6: Final answer
    x = 186,427.88

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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.