Home / 445,541.83-668,368.76-217,845.05

Finding the Fourth Proportional to 445,541.83, 668,368.76 and 217,845.05

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Solution

The fourth proportional to 445,541.83, 668,368.76 and 217,845.05 is: 326,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,541.83 : 668,368.76 = 217,845.05 : x
  2. Step 2: Convert to fraction form
    445,541.83/668,368.76 = 217,845.05/x
  3. Step 3: Cross multiply
    445,541.83x = 668,368.76 × 217,845.05
  4. Step 4: Simplify right side
    445,541.83x = 145,600,828,156.17
  5. Step 5: Solve for x
    x = 145,600,828,156.17/445,541.83
  6. Step 6: Final answer
    x = 326,794.97

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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.