Home / 210,836.36-290,953.14-115,341.32

Finding the Fourth Proportional to 210,836.36, 290,953.14 and 115,341.32

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Solution

The fourth proportional to 210,836.36, 290,953.14 and 115,341.32 is: 159,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,836.36 : 290,953.14 = 115,341.32 : x
  2. Step 2: Convert to fraction form
    210,836.36/290,953.14 = 115,341.32/x
  3. Step 3: Cross multiply
    210,836.36x = 290,953.14 × 115,341.32
  4. Step 4: Simplify right side
    210,836.36x = 33,558,919,225.74
  5. Step 5: Solve for x
    x = 33,558,919,225.74/210,836.36
  6. Step 6: Final answer
    x = 159,170.45

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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.