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Finding the Fourth Proportional to 248,915.40, 373,154.40 and 149,115.30

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Solution

The fourth proportional to 248,915.40, 373,154.40 and 149,115.30 is: 223,541.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,915.40 : 373,154.40 = 149,115.30 : x
  2. Step 2: Convert to fraction form
    248,915.40/373,154.40 = 149,115.30/x
  3. Step 3: Cross multiply
    248,915.40x = 373,154.40 × 149,115.30
  4. Step 4: Simplify right side
    248,915.40x = 55,643,030,302.32
  5. Step 5: Solve for x
    x = 55,643,030,302.32/248,915.40
  6. Step 6: Final answer
    x = 223,541.94

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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.