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Finding the Fourth Proportional to 289,119.44, 433,494.12 and 139,060.92

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Solution

The fourth proportional to 289,119.44, 433,494.12 and 139,060.92 is: 208,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,119.44 : 433,494.12 = 139,060.92 : x
  2. Step 2: Convert to fraction form
    289,119.44/433,494.12 = 139,060.92/x
  3. Step 3: Cross multiply
    289,119.44x = 433,494.12 × 139,060.92
  4. Step 4: Simplify right side
    289,119.44x = 60,282,091,141.79
  5. Step 5: Solve for x
    x = 60,282,091,141.79/289,119.44
  6. Step 6: Final answer
    x = 208,502.38

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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.