Home / 258,915.42-357,312.06-142,623.72

Finding the Fourth Proportional to 258,915.42, 357,312.06 and 142,623.72

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Solution

The fourth proportional to 258,915.42, 357,312.06 and 142,623.72 is: 196,825.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,915.42 : 357,312.06 = 142,623.72 : x
  2. Step 2: Convert to fraction form
    258,915.42/357,312.06 = 142,623.72/x
  3. Step 3: Cross multiply
    258,915.42x = 357,312.06 × 142,623.72
  4. Step 4: Simplify right side
    258,915.42x = 50,961,175,198.06
  5. Step 5: Solve for x
    x = 50,961,175,198.06/258,915.42
  6. Step 6: Final answer
    x = 196,825.57

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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.