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Finding the Fourth Proportional to 511,312.40, 766,961.40 and 230,829.20

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Solution

The fourth proportional to 511,312.40, 766,961.40 and 230,829.20 is: 346,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,312.40 : 766,961.40 = 230,829.20 : x
  2. Step 2: Convert to fraction form
    511,312.40/766,961.40 = 230,829.20/x
  3. Step 3: Cross multiply
    511,312.40x = 766,961.40 × 230,829.20
  4. Step 4: Simplify right side
    511,312.40x = 177,037,086,392.88
  5. Step 5: Solve for x
    x = 177,037,086,392.88/511,312.40
  6. Step 6: Final answer
    x = 346,240.55

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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.