Home / 290,162.40-434,725.20-237,285.60

Finding the Fourth Proportional to 290,162.40, 434,725.20 and 237,285.60

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Solution

The fourth proportional to 290,162.40, 434,725.20 and 237,285.60 is: 355,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,162.40 : 434,725.20 = 237,285.60 : x
  2. Step 2: Convert to fraction form
    290,162.40/434,725.20 = 237,285.60/x
  3. Step 3: Cross multiply
    290,162.40x = 434,725.20 × 237,285.60
  4. Step 4: Simplify right side
    290,162.40x = 103,154,029,917.12
  5. Step 5: Solve for x
    x = 103,154,029,917.12/290,162.40
  6. Step 6: Final answer
    x = 355,504.47

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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.