Home / 298,719.08-447,856.02-130,207.40

Finding the Fourth Proportional to 298,719.08, 447,856.02 and 130,207.40

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Solution

The fourth proportional to 298,719.08, 447,856.02 and 130,207.40 is: 195,214.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,719.08 : 447,856.02 = 130,207.40 : x
  2. Step 2: Convert to fraction form
    298,719.08/447,856.02 = 130,207.40/x
  3. Step 3: Cross multiply
    298,719.08x = 447,856.02 × 130,207.40
  4. Step 4: Simplify right side
    298,719.08x = 58,314,167,938.55
  5. Step 5: Solve for x
    x = 58,314,167,938.55/298,719.08
  6. Step 6: Final answer
    x = 195,214.07

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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.