Home / 330,503.68-455,927.19-215,849.43

Finding the Fourth Proportional to 330,503.68, 455,927.19 and 215,849.43

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Solution

The fourth proportional to 330,503.68, 455,927.19 and 215,849.43 is: 297,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,503.68 : 455,927.19 = 215,849.43 : x
  2. Step 2: Convert to fraction form
    330,503.68/455,927.19 = 215,849.43/x
  3. Step 3: Cross multiply
    330,503.68x = 455,927.19 × 215,849.43
  4. Step 4: Simplify right side
    330,503.68x = 98,411,624,083.00
  5. Step 5: Solve for x
    x = 98,411,624,083.00/330,503.68
  6. Step 6: Final answer
    x = 297,762.57

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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.