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Finding the Fourth Proportional to 359,052.60, 495,490.10 and 197,907.78

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Solution

The fourth proportional to 359,052.60, 495,490.10 and 197,907.78 is: 273,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,052.60 : 495,490.10 = 197,907.78 : x
  2. Step 2: Convert to fraction form
    359,052.60/495,490.10 = 197,907.78/x
  3. Step 3: Cross multiply
    359,052.60x = 495,490.10 × 197,907.78
  4. Step 4: Simplify right side
    359,052.60x = 98,061,345,702.98
  5. Step 5: Solve for x
    x = 98,061,345,702.98/359,052.60
  6. Step 6: Final answer
    x = 273,111.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.