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Finding the Fourth Proportional to 298,915.42, 448,435.24 and 141,057.76

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Solution

The fourth proportional to 298,915.42, 448,435.24 and 141,057.76 is: 211,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,915.42 : 448,435.24 = 141,057.76 : x
  2. Step 2: Convert to fraction form
    298,915.42/448,435.24 = 141,057.76/x
  3. Step 3: Cross multiply
    298,915.42x = 448,435.24 × 141,057.76
  4. Step 4: Simplify right side
    298,915.42x = 63,255,270,459.46
  5. Step 5: Solve for x
    x = 63,255,270,459.46/298,915.42
  6. Step 6: Final answer
    x = 211,615.95

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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.