Home / 219,659.04-329,490.32-143,821.51

Finding the Fourth Proportional to 219,659.04, 329,490.32 and 143,821.51

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Solution

The fourth proportional to 219,659.04, 329,490.32 and 143,821.51 is: 215,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,659.04 : 329,490.32 = 143,821.51 : x
  2. Step 2: Convert to fraction form
    219,659.04/329,490.32 = 143,821.51/x
  3. Step 3: Cross multiply
    219,659.04x = 329,490.32 × 143,821.51
  4. Step 4: Simplify right side
    219,659.04x = 47,387,793,809.95
  5. Step 5: Solve for x
    x = 47,387,793,809.95/219,659.04
  6. Step 6: Final answer
    x = 215,733.41

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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.