Home / 290,929.86-401,488.65-170,081.46

Finding the Fourth Proportional to 290,929.86, 401,488.65 and 170,081.46

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Solution

The fourth proportional to 290,929.86, 401,488.65 and 170,081.46 is: 234,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,929.86 : 401,488.65 = 170,081.46 : x
  2. Step 2: Convert to fraction form
    290,929.86/401,488.65 = 170,081.46/x
  3. Step 3: Cross multiply
    290,929.86x = 401,488.65 × 170,081.46
  4. Step 4: Simplify right side
    290,929.86x = 68,285,775,765.43
  5. Step 5: Solve for x
    x = 68,285,775,765.43/290,929.86
  6. Step 6: Final answer
    x = 234,715.60

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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.