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Finding the Fourth Proportional to 443,897.64, 612,579.78 and 242,706.60

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Solution

The fourth proportional to 443,897.64, 612,579.78 and 242,706.60 is: 334,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,897.64 : 612,579.78 = 242,706.60 : x
  2. Step 2: Convert to fraction form
    443,897.64/612,579.78 = 242,706.60/x
  3. Step 3: Cross multiply
    443,897.64x = 612,579.78 × 242,706.60
  4. Step 4: Simplify right side
    443,897.64x = 148,677,155,632.55
  5. Step 5: Solve for x
    x = 148,677,155,632.55/443,897.64
  6. Step 6: Final answer
    x = 334,935.67

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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.