Home / 346,329.90-518,313.26-290,233.35

Finding the Fourth Proportional to 346,329.90, 518,313.26 and 290,233.35

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Solution

The fourth proportional to 346,329.90, 518,313.26 and 290,233.35 is: 434,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,329.90 : 518,313.26 = 290,233.35 : x
  2. Step 2: Convert to fraction form
    346,329.90/518,313.26 = 290,233.35/x
  3. Step 3: Cross multiply
    346,329.90x = 518,313.26 × 290,233.35
  4. Step 4: Simplify right side
    346,329.90x = 150,431,793,799.22
  5. Step 5: Solve for x
    x = 150,431,793,799.22/346,329.90
  6. Step 6: Final answer
    x = 434,359.82

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1.5x scale

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.