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Finding the Fourth Proportional to 374,630.40, 561,945.60 and 248,659.20

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Solution

The fourth proportional to 374,630.40, 561,945.60 and 248,659.20 is: 372,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,630.40 : 561,945.60 = 248,659.20 : x
  2. Step 2: Convert to fraction form
    374,630.40/561,945.60 = 248,659.20/x
  3. Step 3: Cross multiply
    374,630.40x = 561,945.60 × 248,659.20
  4. Step 4: Simplify right side
    374,630.40x = 139,732,943,339.52
  5. Step 5: Solve for x
    x = 139,732,943,339.52/374,630.40
  6. Step 6: Final answer
    x = 372,988.80

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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.