Home / 289,939.90-434,931.45-102,927.10

Finding the Fourth Proportional to 289,939.90, 434,931.45 and 102,927.10

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Solution

The fourth proportional to 289,939.90, 434,931.45 and 102,927.10 is: 154,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,939.90 : 434,931.45 = 102,927.10 : x
  2. Step 2: Convert to fraction form
    289,939.90/434,931.45 = 102,927.10/x
  3. Step 3: Cross multiply
    289,939.90x = 434,931.45 × 102,927.10
  4. Step 4: Simplify right side
    289,939.90x = 44,766,232,847.30
  5. Step 5: Solve for x
    x = 44,766,232,847.30/289,939.90
  6. Step 6: Final answer
    x = 154,398.32

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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.