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Finding the Fourth Proportional to 289,001.64, 398,795.22 and 180,095.88

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Solution

The fourth proportional to 289,001.64, 398,795.22 and 180,095.88 is: 248,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,001.64 : 398,795.22 = 180,095.88 : x
  2. Step 2: Convert to fraction form
    289,001.64/398,795.22 = 180,095.88/x
  3. Step 3: Cross multiply
    289,001.64x = 398,795.22 × 180,095.88
  4. Step 4: Simplify right side
    289,001.64x = 71,821,376,085.69
  5. Step 5: Solve for x
    x = 71,821,376,085.69/289,001.64
  6. Step 6: Final answer
    x = 248,515.46

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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.