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Finding the Fourth Proportional to 553,916.58, 830,542.14 and 216,555.36

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Solution

The fourth proportional to 553,916.58, 830,542.14 and 216,555.36 is: 324,702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,916.58 : 830,542.14 = 216,555.36 : x
  2. Step 2: Convert to fraction form
    553,916.58/830,542.14 = 216,555.36/x
  3. Step 3: Cross multiply
    553,916.58x = 830,542.14 × 216,555.36
  4. Step 4: Simplify right side
    553,916.58x = 179,858,352,122.87
  5. Step 5: Solve for x
    x = 179,858,352,122.87/553,916.58
  6. Step 6: Final answer
    x = 324,702.96

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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.