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Finding the Fourth Proportional to 296,294.72, 444,485.84 and 85,905.32

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Solution

The fourth proportional to 296,294.72, 444,485.84 and 85,905.32 is: 128,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,294.72 : 444,485.84 = 85,905.32 : x
  2. Step 2: Convert to fraction form
    296,294.72/444,485.84 = 85,905.32/x
  3. Step 3: Cross multiply
    296,294.72x = 444,485.84 × 85,905.32
  4. Step 4: Simplify right side
    296,294.72x = 38,183,695,668.71
  5. Step 5: Solve for x
    x = 38,183,695,668.71/296,294.72
  6. Step 6: Final answer
    x = 128,870.66

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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.