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Finding the Fourth Proportional to 310,880.40, 429,010.26 and 174,914.52

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Solution

The fourth proportional to 310,880.40, 429,010.26 and 174,914.52 is: 241,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,880.40 : 429,010.26 = 174,914.52 : x
  2. Step 2: Convert to fraction form
    310,880.40/429,010.26 = 174,914.52/x
  3. Step 3: Cross multiply
    310,880.40x = 429,010.26 × 174,914.52
  4. Step 4: Simplify right side
    310,880.40x = 75,040,123,702.98
  5. Step 5: Solve for x
    x = 75,040,123,702.98/310,880.40
  6. Step 6: Final answer
    x = 241,379.40

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1.5x scale

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.