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Finding the Fourth Proportional to 389,504.40, 584,256.60 and 152,854.80

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Solution

The fourth proportional to 389,504.40, 584,256.60 and 152,854.80 is: 229,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,504.40 : 584,256.60 = 152,854.80 : x
  2. Step 2: Convert to fraction form
    389,504.40/584,256.60 = 152,854.80/x
  3. Step 3: Cross multiply
    389,504.40x = 584,256.60 × 152,854.80
  4. Step 4: Simplify right side
    389,504.40x = 89,306,425,741.68
  5. Step 5: Solve for x
    x = 89,306,425,741.68/389,504.40
  6. Step 6: Final answer
    x = 229,282.20

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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.