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Finding the Fourth Proportional to 388,896.94, 583,296.19 and 152,405.69

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Solution

The fourth proportional to 388,896.94, 583,296.19 and 152,405.69 is: 228,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,896.94 : 583,296.19 = 152,405.69 : x
  2. Step 2: Convert to fraction form
    388,896.94/583,296.19 = 152,405.69/x
  3. Step 3: Cross multiply
    388,896.94x = 583,296.19 × 152,405.69
  4. Step 4: Simplify right side
    388,896.94x = 88,897,658,311.32
  5. Step 5: Solve for x
    x = 88,897,658,311.32/388,896.94
  6. Step 6: Final answer
    x = 228,589.25

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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.