Home / 398,826.10-550,381.72-217,541.93

Finding the Fourth Proportional to 398,826.10, 550,381.72 and 217,541.93

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Solution

The fourth proportional to 398,826.10, 550,381.72 and 217,541.93 is: 300,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,826.10 : 550,381.72 = 217,541.93 : x
  2. Step 2: Convert to fraction form
    398,826.10/550,381.72 = 217,541.93/x
  3. Step 3: Cross multiply
    398,826.10x = 550,381.72 × 217,541.93
  4. Step 4: Simplify right side
    398,826.10x = 119,731,101,605.52
  5. Step 5: Solve for x
    x = 119,731,101,605.52/398,826.10
  6. Step 6: Final answer
    x = 300,208.80

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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.