Home / 511,266.58-766,904.73-137,289.58

Finding the Fourth Proportional to 511,266.58, 766,904.73 and 137,289.58

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Solution

The fourth proportional to 511,266.58, 766,904.73 and 137,289.58 is: 205,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,266.58 : 766,904.73 = 137,289.58 : x
  2. Step 2: Convert to fraction form
    511,266.58/766,904.73 = 137,289.58/x
  3. Step 3: Cross multiply
    511,266.58x = 766,904.73 × 137,289.58
  4. Step 4: Simplify right side
    511,266.58x = 105,288,028,281.71
  5. Step 5: Solve for x
    x = 105,288,028,281.71/511,266.58
  6. Step 6: Final answer
    x = 205,935.68

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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.