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Finding the Fourth Proportional to 289,225.23, 433,736.23 and 86,760.97

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Solution

The fourth proportional to 289,225.23, 433,736.23 and 86,760.97 is: 130,110.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,225.23 : 433,736.23 = 86,760.97 : x
  2. Step 2: Convert to fraction form
    289,225.23/433,736.23 = 86,760.97/x
  3. Step 3: Cross multiply
    289,225.23x = 433,736.23 × 86,760.97
  4. Step 4: Simplify right side
    289,225.23x = 37,631,376,038.94
  5. Step 5: Solve for x
    x = 37,631,376,038.94/289,225.23
  6. Step 6: Final answer
    x = 130,110.97

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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.