Home / 346,327.90-518,310.26-290,231.35

Finding the Fourth Proportional to 346,327.90, 518,310.26 and 290,231.35

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Solution

The fourth proportional to 346,327.90, 518,310.26 and 290,231.35 is: 434,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,327.90 : 518,310.26 = 290,231.35 : x
  2. Step 2: Convert to fraction form
    346,327.90/518,310.26 = 290,231.35/x
  3. Step 3: Cross multiply
    346,327.90x = 518,310.26 × 290,231.35
  4. Step 4: Simplify right side
    346,327.90x = 150,429,886,478.65
  5. Step 5: Solve for x
    x = 150,429,886,478.65/346,327.90
  6. Step 6: Final answer
    x = 434,356.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.