Home / 199,432.60-299,312.10-197,877.40

Finding the Fourth Proportional to 199,432.60, 299,312.10 and 197,877.40

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Solution

The fourth proportional to 199,432.60, 299,312.10 and 197,877.40 is: 296,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,432.60 : 299,312.10 = 197,877.40 : x
  2. Step 2: Convert to fraction form
    199,432.60/299,312.10 = 197,877.40/x
  3. Step 3: Cross multiply
    199,432.60x = 299,312.10 × 197,877.40
  4. Step 4: Simplify right side
    199,432.60x = 59,227,100,136.54
  5. Step 5: Solve for x
    x = 59,227,100,136.54/199,432.60
  6. Step 6: Final answer
    x = 296,978.03

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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.