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Finding the Fourth Proportional to 389,101.80, 583,220.70 and 152,365.80

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Solution

The fourth proportional to 389,101.80, 583,220.70 and 152,365.80 is: 228,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,101.80 : 583,220.70 = 152,365.80 : x
  2. Step 2: Convert to fraction form
    389,101.80/583,220.70 = 152,365.80/x
  3. Step 3: Cross multiply
    389,101.80x = 583,220.70 × 152,365.80
  4. Step 4: Simplify right side
    389,101.80x = 88,862,888,532.06
  5. Step 5: Solve for x
    x = 88,862,888,532.06/389,101.80
  6. Step 6: Final answer
    x = 228,379.54

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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.