Home / 289,772.40-434,140.20-236,895.60

Finding the Fourth Proportional to 289,772.40, 434,140.20 and 236,895.60

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Solution

The fourth proportional to 289,772.40, 434,140.20 and 236,895.60 is: 354,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,772.40 : 434,140.20 = 236,895.60 : x
  2. Step 2: Convert to fraction form
    289,772.40/434,140.20 = 236,895.60/x
  3. Step 3: Cross multiply
    289,772.40x = 434,140.20 × 236,895.60
  4. Step 4: Simplify right side
    289,772.40x = 102,845,903,163.12
  5. Step 5: Solve for x
    x = 102,845,903,163.12/289,772.40
  6. Step 6: Final answer
    x = 354,919.60

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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.