Home / 210,860.96-290,985.54-115,366.28

Finding the Fourth Proportional to 210,860.96, 290,985.54 and 115,366.28

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Solution

The fourth proportional to 210,860.96, 290,985.54 and 115,366.28 is: 159,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,860.96 : 290,985.54 = 115,366.28 : x
  2. Step 2: Convert to fraction form
    210,860.96/290,985.54 = 115,366.28/x
  3. Step 3: Cross multiply
    210,860.96x = 290,985.54 × 115,366.28
  4. Step 4: Simplify right side
    210,860.96x = 33,569,919,283.59
  5. Step 5: Solve for x
    x = 33,569,919,283.59/210,860.96
  6. Step 6: Final answer
    x = 159,204.05

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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.