Home / 251,966.40-377,431.20-127,377.60

Finding the Fourth Proportional to 251,966.40, 377,431.20 and 127,377.60

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Solution

The fourth proportional to 251,966.40, 377,431.20 and 127,377.60 is: 190,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,966.40 : 377,431.20 = 127,377.60 : x
  2. Step 2: Convert to fraction form
    251,966.40/377,431.20 = 127,377.60/x
  3. Step 3: Cross multiply
    251,966.40x = 377,431.20 × 127,377.60
  4. Step 4: Simplify right side
    251,966.40x = 48,076,280,421.12
  5. Step 5: Solve for x
    x = 48,076,280,421.12/251,966.40
  6. Step 6: Final answer
    x = 190,804.33

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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.