Home / 347,109.49-478,933.32-219,711.07

Finding the Fourth Proportional to 347,109.49, 478,933.32 and 219,711.07

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Solution

The fourth proportional to 347,109.49, 478,933.32 and 219,711.07 is: 303,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,109.49 : 478,933.32 = 219,711.07 : x
  2. Step 2: Convert to fraction form
    347,109.49/478,933.32 = 219,711.07/x
  3. Step 3: Cross multiply
    347,109.49x = 478,933.32 × 219,711.07
  4. Step 4: Simplify right side
    347,109.49x = 105,226,952,195.85
  5. Step 5: Solve for x
    x = 105,226,952,195.85/347,109.49
  6. Step 6: Final answer
    x = 303,152.05

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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.