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Finding the Fourth Proportional to 304,837.89, 420,676.21 and 168,880.67

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Solution

The fourth proportional to 304,837.89, 420,676.21 and 168,880.67 is: 233,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,837.89 : 420,676.21 = 168,880.67 : x
  2. Step 2: Convert to fraction form
    304,837.89/420,676.21 = 168,880.67/x
  3. Step 3: Cross multiply
    304,837.89x = 420,676.21 × 168,880.67
  4. Step 4: Simplify right side
    304,837.89x = 71,044,080,197.86
  5. Step 5: Solve for x
    x = 71,044,080,197.86/304,837.89
  6. Step 6: Final answer
    x = 233,055.28

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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.