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Finding the Fourth Proportional to 298,038.60, 411,304.08 and 170,738.80

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Solution

The fourth proportional to 298,038.60, 411,304.08 and 170,738.80 is: 235,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,038.60 : 411,304.08 = 170,738.80 : x
  2. Step 2: Convert to fraction form
    298,038.60/411,304.08 = 170,738.80/x
  3. Step 3: Cross multiply
    298,038.60x = 411,304.08 × 170,738.80
  4. Step 4: Simplify right side
    298,038.60x = 70,225,565,054.30
  5. Step 5: Solve for x
    x = 70,225,565,054.30/298,038.60
  6. Step 6: Final answer
    x = 235,625.74

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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.