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Finding the Fourth Proportional to 154,381.80, 231,572.70 and 151,271.40

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Solution

The fourth proportional to 154,381.80, 231,572.70 and 151,271.40 is: 226,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,381.80 : 231,572.70 = 151,271.40 : x
  2. Step 2: Convert to fraction form
    154,381.80/231,572.70 = 151,271.40/x
  3. Step 3: Cross multiply
    154,381.80x = 231,572.70 × 151,271.40
  4. Step 4: Simplify right side
    154,381.80x = 35,030,326,530.78
  5. Step 5: Solve for x
    x = 35,030,326,530.78/154,381.80
  6. Step 6: Final answer
    x = 226,907.10

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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.