Home / 210,805.64-290,830.08-134,311.04

Finding the Fourth Proportional to 210,805.64, 290,830.08 and 134,311.04

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Solution

The fourth proportional to 210,805.64, 290,830.08 and 134,311.04 is: 185,297.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,805.64 : 290,830.08 = 134,311.04 : x
  2. Step 2: Convert to fraction form
    210,805.64/290,830.08 = 134,311.04/x
  3. Step 3: Cross multiply
    210,805.64x = 290,830.08 × 134,311.04
  4. Step 4: Simplify right side
    210,805.64x = 39,061,690,508.08
  5. Step 5: Solve for x
    x = 39,061,690,508.08/210,805.64
  6. Step 6: Final answer
    x = 185,297.18

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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.