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Finding the Fourth Proportional to 298,075.60, 411,342.60 and 163,939.60

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Solution

The fourth proportional to 298,075.60, 411,342.60 and 163,939.60 is: 226,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,075.60 : 411,342.60 = 163,939.60 : x
  2. Step 2: Convert to fraction form
    298,075.60/411,342.60 = 163,939.60/x
  3. Step 3: Cross multiply
    298,075.60x = 411,342.60 × 163,939.60
  4. Step 4: Simplify right side
    298,075.60x = 67,435,341,306.96
  5. Step 5: Solve for x
    x = 67,435,341,306.96/298,075.60
  6. Step 6: Final answer
    x = 226,235.70

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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.