Home / 330,504.18-455,927.88-215,849.93

Finding the Fourth Proportional to 330,504.18, 455,927.88 and 215,849.93

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Solution

The fourth proportional to 330,504.18, 455,927.88 and 215,849.93 is: 297,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,504.18 : 455,927.88 = 215,849.93 : x
  2. Step 2: Convert to fraction form
    330,504.18/455,927.88 = 215,849.93/x
  3. Step 3: Cross multiply
    330,504.18x = 455,927.88 × 215,849.93
  4. Step 4: Simplify right side
    330,504.18x = 98,411,998,703.41
  5. Step 5: Solve for x
    x = 98,411,998,703.41/330,504.18
  6. Step 6: Final answer
    x = 297,763.25

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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.