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Finding the Fourth Proportional to 553,310.02, 830,174.20 and 216,591.32

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Solution

The fourth proportional to 553,310.02, 830,174.20 and 216,591.32 is: 324,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,310.02 : 830,174.20 = 216,591.32 : x
  2. Step 2: Convert to fraction form
    553,310.02/830,174.20 = 216,591.32/x
  3. Step 3: Cross multiply
    553,310.02x = 830,174.20 × 216,591.32
  4. Step 4: Simplify right side
    553,310.02x = 179,808,525,807.94
  5. Step 5: Solve for x
    x = 179,808,525,807.94/553,310.02
  6. Step 6: Final answer
    x = 324,968.86

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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.