Home / 210,507.04-290,496.30-115,011.68

Finding the Fourth Proportional to 210,507.04, 290,496.30 and 115,011.68

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Solution

The fourth proportional to 210,507.04, 290,496.30 and 115,011.68 is: 158,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,507.04 : 290,496.30 = 115,011.68 : x
  2. Step 2: Convert to fraction form
    210,507.04/290,496.30 = 115,011.68/x
  3. Step 3: Cross multiply
    210,507.04x = 290,496.30 × 115,011.68
  4. Step 4: Simplify right side
    210,507.04x = 33,410,467,496.78
  5. Step 5: Solve for x
    x = 33,410,467,496.78/210,507.04
  6. Step 6: Final answer
    x = 158,714.25

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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.