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Finding the Fourth Proportional to 609,075.40, 913,670.70 and 165,843.40

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Solution

The fourth proportional to 609,075.40, 913,670.70 and 165,843.40 is: 248,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,075.40 : 913,670.70 = 165,843.40 : x
  2. Step 2: Convert to fraction form
    609,075.40/913,670.70 = 165,843.40/x
  3. Step 3: Cross multiply
    609,075.40x = 913,670.70 × 165,843.40
  4. Step 4: Simplify right side
    609,075.40x = 151,526,255,368.38
  5. Step 5: Solve for x
    x = 151,526,255,368.38/609,075.40
  6. Step 6: Final answer
    x = 248,780.78

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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.