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Finding the Fourth Proportional to 270,298.58, 373,039.79 and 155,581.29

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Solution

The fourth proportional to 270,298.58, 373,039.79 and 155,581.29 is: 214,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,298.58 : 373,039.79 = 155,581.29 : x
  2. Step 2: Convert to fraction form
    270,298.58/373,039.79 = 155,581.29/x
  3. Step 3: Cross multiply
    270,298.58x = 373,039.79 × 155,581.29
  4. Step 4: Simplify right side
    270,298.58x = 58,038,010,971.62
  5. Step 5: Solve for x
    x = 58,038,010,971.62/270,298.58
  6. Step 6: Final answer
    x = 214,718.15

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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.