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Finding the Fourth Proportional to 270,658.78, 373,548.70 and 155,915.12

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Solution

The fourth proportional to 270,658.78, 373,548.70 and 155,915.12 is: 215,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,658.78 : 373,548.70 = 155,915.12 : x
  2. Step 2: Convert to fraction form
    270,658.78/373,548.70 = 155,915.12/x
  3. Step 3: Cross multiply
    270,658.78x = 373,548.70 × 155,915.12
  4. Step 4: Simplify right side
    270,658.78x = 58,241,890,386.34
  5. Step 5: Solve for x
    x = 58,241,890,386.34/270,658.78
  6. Step 6: Final answer
    x = 215,185.67

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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.