Home / 264,872.96-397,316.64-77,890.40

Finding the Fourth Proportional to 264,872.96, 397,316.64 and 77,890.40

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Solution

The fourth proportional to 264,872.96, 397,316.64 and 77,890.40 is: 116,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,872.96 : 397,316.64 = 77,890.40 : x
  2. Step 2: Convert to fraction form
    264,872.96/397,316.64 = 77,890.40/x
  3. Step 3: Cross multiply
    264,872.96x = 397,316.64 × 77,890.40
  4. Step 4: Simplify right side
    264,872.96x = 30,947,152,016.26
  5. Step 5: Solve for x
    x = 30,947,152,016.26/264,872.96
  6. Step 6: Final answer
    x = 116,837.72

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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.