Home / 253,208.40-379,812.60-127,237.20

Finding the Fourth Proportional to 253,208.40, 379,812.60 and 127,237.20

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Solution

The fourth proportional to 253,208.40, 379,812.60 and 127,237.20 is: 190,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,208.40 : 379,812.60 = 127,237.20 : x
  2. Step 2: Convert to fraction form
    253,208.40/379,812.60 = 127,237.20/x
  3. Step 3: Cross multiply
    253,208.40x = 379,812.60 × 127,237.20
  4. Step 4: Simplify right side
    253,208.40x = 48,326,291,748.72
  5. Step 5: Solve for x
    x = 48,326,291,748.72/253,208.40
  6. Step 6: Final answer
    x = 190,855.80

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1.5x scale

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.