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Finding the Fourth Proportional to 380,852.74, 570,655.80 and 231,138.91

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Solution

The fourth proportional to 380,852.74, 570,655.80 and 231,138.91 is: 346,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,852.74 : 570,655.80 = 231,138.91 : x
  2. Step 2: Convert to fraction form
    380,852.74/570,655.80 = 231,138.91/x
  3. Step 3: Cross multiply
    380,852.74x = 570,655.80 × 231,138.91
  4. Step 4: Simplify right side
    380,852.74x = 131,900,759,597.18
  5. Step 5: Solve for x
    x = 131,900,759,597.18/380,852.74
  6. Step 6: Final answer
    x = 346,330.08

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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.