Home / 320,490.96-442,333.08-193,166.72

Finding the Fourth Proportional to 320,490.96, 442,333.08 and 193,166.72

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Solution

The fourth proportional to 320,490.96, 442,333.08 and 193,166.72 is: 266,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,490.96 : 442,333.08 = 193,166.72 : x
  2. Step 2: Convert to fraction form
    320,490.96/442,333.08 = 193,166.72/x
  3. Step 3: Cross multiply
    320,490.96x = 442,333.08 × 193,166.72
  4. Step 4: Simplify right side
    320,490.96x = 85,444,030,211.10
  5. Step 5: Solve for x
    x = 85,444,030,211.10/320,490.96
  6. Step 6: Final answer
    x = 266,603.56

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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.