Home / 258,729.67-357,038.19-145,530.55

Finding the Fourth Proportional to 258,729.67, 357,038.19 and 145,530.55

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Solution

The fourth proportional to 258,729.67, 357,038.19 and 145,530.55 is: 200,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,729.67 : 357,038.19 = 145,530.55 : x
  2. Step 2: Convert to fraction form
    258,729.67/357,038.19 = 145,530.55/x
  3. Step 3: Cross multiply
    258,729.67x = 357,038.19 × 145,530.55
  4. Step 4: Simplify right side
    258,729.67x = 51,959,964,161.70
  5. Step 5: Solve for x
    x = 51,959,964,161.70/258,729.67
  6. Step 6: Final answer
    x = 200,827.23

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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.