Home / 261,285.64-392,155.98-149,190.28

Finding the Fourth Proportional to 261,285.64, 392,155.98 and 149,190.28

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Solution

The fourth proportional to 261,285.64, 392,155.98 and 149,190.28 is: 223,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,285.64 : 392,155.98 = 149,190.28 : x
  2. Step 2: Convert to fraction form
    261,285.64/392,155.98 = 149,190.28/x
  3. Step 3: Cross multiply
    261,285.64x = 392,155.98 × 149,190.28
  4. Step 4: Simplify right side
    261,285.64x = 58,505,860,459.87
  5. Step 5: Solve for x
    x = 58,505,860,459.87/261,285.64
  6. Step 6: Final answer
    x = 223,915.33

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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.