Home / 320,801.70-442,849.23-191,784.90

Finding the Fourth Proportional to 320,801.70, 442,849.23 and 191,784.90

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Solution

The fourth proportional to 320,801.70, 442,849.23 and 191,784.90 is: 264,748.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,801.70 : 442,849.23 = 191,784.90 : x
  2. Step 2: Convert to fraction form
    320,801.70/442,849.23 = 191,784.90/x
  3. Step 3: Cross multiply
    320,801.70x = 442,849.23 × 191,784.90
  4. Step 4: Simplify right side
    320,801.70x = 84,931,795,290.63
  5. Step 5: Solve for x
    x = 84,931,795,290.63/320,801.70
  6. Step 6: Final answer
    x = 264,748.58

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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.