Home / 210,297.43-290,210.17-134,845.75

Finding the Fourth Proportional to 210,297.43, 290,210.17 and 134,845.75

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Solution

The fourth proportional to 210,297.43, 290,210.17 and 134,845.75 is: 186,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,297.43 : 290,210.17 = 134,845.75 : x
  2. Step 2: Convert to fraction form
    210,297.43/290,210.17 = 134,845.75/x
  3. Step 3: Cross multiply
    210,297.43x = 290,210.17 × 134,845.75
  4. Step 4: Simplify right side
    210,297.43x = 39,133,608,031.28
  5. Step 5: Solve for x
    x = 39,133,608,031.28/210,297.43
  6. Step 6: Final answer
    x = 186,086.95

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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.