Home / 380,261.10-570,361.95-99,771.06

Finding the Fourth Proportional to 380,261.10, 570,361.95 and 99,771.06

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Solution

The fourth proportional to 380,261.10, 570,361.95 and 99,771.06 is: 149,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,261.10 : 570,361.95 = 99,771.06 : x
  2. Step 2: Convert to fraction form
    380,261.10/570,361.95 = 99,771.06/x
  3. Step 3: Cross multiply
    380,261.10x = 570,361.95 × 99,771.06
  4. Step 4: Simplify right side
    380,261.10x = 56,905,616,335.17
  5. Step 5: Solve for x
    x = 56,905,616,335.17/380,261.10
  6. Step 6: Final answer
    x = 149,648.80

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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.