Home / 210,795.57-290,902.23-115,308.45

Finding the Fourth Proportional to 210,795.57, 290,902.23 and 115,308.45

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Solution

The fourth proportional to 210,795.57, 290,902.23 and 115,308.45 is: 159,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,795.57 : 290,902.23 = 115,308.45 : x
  2. Step 2: Convert to fraction form
    210,795.57/290,902.23 = 115,308.45/x
  3. Step 3: Cross multiply
    210,795.57x = 290,902.23 × 115,308.45
  4. Step 4: Simplify right side
    210,795.57x = 33,543,485,242.84
  5. Step 5: Solve for x
    x = 33,543,485,242.84/210,795.57
  6. Step 6: Final answer
    x = 159,128.04

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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.