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Finding the Fourth Proportional to 171,938.40, 257,907.60 and 151,202.40

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Solution

The fourth proportional to 171,938.40, 257,907.60 and 151,202.40 is: 226,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,938.40 : 257,907.60 = 151,202.40 : x
  2. Step 2: Convert to fraction form
    171,938.40/257,907.60 = 151,202.40/x
  3. Step 3: Cross multiply
    171,938.40x = 257,907.60 × 151,202.40
  4. Step 4: Simplify right side
    171,938.40x = 38,996,248,098.24
  5. Step 5: Solve for x
    x = 38,996,248,098.24/171,938.40
  6. Step 6: Final answer
    x = 226,803.60

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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.