Home / 289,715.90-434,573.85-254,695.10

Finding the Fourth Proportional to 289,715.90, 434,573.85 and 254,695.10

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Solution

The fourth proportional to 289,715.90, 434,573.85 and 254,695.10 is: 382,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,715.90 : 434,573.85 = 254,695.10 : x
  2. Step 2: Convert to fraction form
    289,715.90/434,573.85 = 254,695.10/x
  3. Step 3: Cross multiply
    289,715.90x = 434,573.85 × 254,695.10
  4. Step 4: Simplify right side
    289,715.90x = 110,683,830,183.14
  5. Step 5: Solve for x
    x = 110,683,830,183.14/289,715.90
  6. Step 6: Final answer
    x = 382,042.65

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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.