Home / 258,730.67-357,039.57-145,531.55

Finding the Fourth Proportional to 258,730.67, 357,039.57 and 145,531.55

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Solution

The fourth proportional to 258,730.67, 357,039.57 and 145,531.55 is: 200,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,730.67 : 357,039.57 = 145,531.55 : x
  2. Step 2: Convert to fraction form
    258,730.67/357,039.57 = 145,531.55/x
  3. Step 3: Cross multiply
    258,730.67x = 357,039.57 × 145,531.55
  4. Step 4: Simplify right side
    258,730.67x = 51,960,522,033.43
  5. Step 5: Solve for x
    x = 51,960,522,033.43/258,730.67
  6. Step 6: Final answer
    x = 200,828.61

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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.