Home / 289,986.40-434,461.20-237,109.60

Finding the Fourth Proportional to 289,986.40, 434,461.20 and 237,109.60

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Solution

The fourth proportional to 289,986.40, 434,461.20 and 237,109.60 is: 355,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,986.40 : 434,461.20 = 237,109.60 : x
  2. Step 2: Convert to fraction form
    289,986.40/434,461.20 = 237,109.60/x
  3. Step 3: Cross multiply
    289,986.40x = 434,461.20 × 237,109.60
  4. Step 4: Simplify right side
    289,986.40x = 103,014,921,347.52
  5. Step 5: Solve for x
    x = 103,014,921,347.52/289,986.40
  6. Step 6: Final answer
    x = 355,240.53

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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.