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Finding the Fourth Proportional to 289,902.40, 434,853.60 and 124,014.40

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Solution

The fourth proportional to 289,902.40, 434,853.60 and 124,014.40 is: 186,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,902.40 : 434,853.60 = 124,014.40 : x
  2. Step 2: Convert to fraction form
    289,902.40/434,853.60 = 124,014.40/x
  3. Step 3: Cross multiply
    289,902.40x = 434,853.60 × 124,014.40
  4. Step 4: Simplify right side
    289,902.40x = 53,928,108,291.84
  5. Step 5: Solve for x
    x = 53,928,108,291.84/289,902.40
  6. Step 6: Final answer
    x = 186,021.60

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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.