Home / 355,035.47-489,946.35-193,890.47

Finding the Fourth Proportional to 355,035.47, 489,946.35 and 193,890.47

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Solution

The fourth proportional to 355,035.47, 489,946.35 and 193,890.47 is: 267,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,035.47 : 489,946.35 = 193,890.47 : x
  2. Step 2: Convert to fraction form
    355,035.47/489,946.35 = 193,890.47/x
  3. Step 3: Cross multiply
    355,035.47x = 489,946.35 × 193,890.47
  4. Step 4: Simplify right side
    355,035.47x = 94,995,926,353.64
  5. Step 5: Solve for x
    x = 94,995,926,353.64/355,035.47
  6. Step 6: Final answer
    x = 267,567.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.