Home / 210,247.68-290,206.16-129,700.32

Finding the Fourth Proportional to 210,247.68, 290,206.16 and 129,700.32

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Solution

The fourth proportional to 210,247.68, 290,206.16 and 129,700.32 is: 179,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,247.68 : 290,206.16 = 129,700.32 : x
  2. Step 2: Convert to fraction form
    210,247.68/290,206.16 = 129,700.32/x
  3. Step 3: Cross multiply
    210,247.68x = 290,206.16 × 129,700.32
  4. Step 4: Simplify right side
    210,247.68x = 37,639,831,817.97
  5. Step 5: Solve for x
    x = 37,639,831,817.97/210,247.68
  6. Step 6: Final answer
    x = 179,026.15

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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.