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Finding the Fourth Proportional to 374,480.40, 561,720.60 and 248,509.20

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Solution

The fourth proportional to 374,480.40, 561,720.60 and 248,509.20 is: 372,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,480.40 : 561,720.60 = 248,509.20 : x
  2. Step 2: Convert to fraction form
    374,480.40/561,720.60 = 248,509.20/x
  3. Step 3: Cross multiply
    374,480.40x = 561,720.60 × 248,509.20
  4. Step 4: Simplify right side
    374,480.40x = 139,592,736,929.52
  5. Step 5: Solve for x
    x = 139,592,736,929.52/374,480.40
  6. Step 6: Final answer
    x = 372,763.80

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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.