Home / 258,934.06-357,281.31-145,732.78

Finding the Fourth Proportional to 258,934.06, 357,281.31 and 145,732.78

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Solution

The fourth proportional to 258,934.06, 357,281.31 and 145,732.78 is: 201,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,934.06 : 357,281.31 = 145,732.78 : x
  2. Step 2: Convert to fraction form
    258,934.06/357,281.31 = 145,732.78/x
  3. Step 3: Cross multiply
    258,934.06x = 357,281.31 × 145,732.78
  4. Step 4: Simplify right side
    258,934.06x = 52,067,598,548.34
  5. Step 5: Solve for x
    x = 52,067,598,548.34/258,934.06
  6. Step 6: Final answer
    x = 201,084.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.