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Finding the Fourth Proportional to 374,630.90, 561,946.35 and 248,659.70

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Solution

The fourth proportional to 374,630.90, 561,946.35 and 248,659.70 is: 372,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,630.90 : 561,946.35 = 248,659.70 : x
  2. Step 2: Convert to fraction form
    374,630.90/561,946.35 = 248,659.70/x
  3. Step 3: Cross multiply
    374,630.90x = 561,946.35 × 248,659.70
  4. Step 4: Simplify right side
    374,630.90x = 139,733,410,807.10
  5. Step 5: Solve for x
    x = 139,733,410,807.10/374,630.90
  6. Step 6: Final answer
    x = 372,989.55

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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.