Home / 389,427.60-584,141.40-202,803.60

Finding the Fourth Proportional to 389,427.60, 584,141.40 and 202,803.60

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Solution

The fourth proportional to 389,427.60, 584,141.40 and 202,803.60 is: 304,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,427.60 : 584,141.40 = 202,803.60 : x
  2. Step 2: Convert to fraction form
    389,427.60/584,141.40 = 202,803.60/x
  3. Step 3: Cross multiply
    389,427.60x = 584,141.40 × 202,803.60
  4. Step 4: Simplify right side
    389,427.60x = 118,465,978,829.04
  5. Step 5: Solve for x
    x = 118,465,978,829.04/389,427.60
  6. Step 6: Final answer
    x = 304,205.40

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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.