Home / 210,501.58-290,496.36-115,014.20

Finding the Fourth Proportional to 210,501.58, 290,496.36 and 115,014.20

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Solution

The fourth proportional to 210,501.58, 290,496.36 and 115,014.20 is: 158,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,501.58 : 290,496.36 = 115,014.20 : x
  2. Step 2: Convert to fraction form
    210,501.58/290,496.36 = 115,014.20/x
  3. Step 3: Cross multiply
    210,501.58x = 290,496.36 × 115,014.20
  4. Step 4: Simplify right side
    210,501.58x = 33,411,206,448.31
  5. Step 5: Solve for x
    x = 33,411,206,448.31/210,501.58
  6. Step 6: Final answer
    x = 158,721.88

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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.