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Finding the Fourth Proportional to 443,889, 612,581.94 and 242,697.96

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Solution

The fourth proportional to 443,889, 612,581.94 and 242,697.96 is: 334,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,889 : 612,581.94 = 242,697.96 : x
  2. Step 2: Convert to fraction form
    443,889/612,581.94 = 242,697.96/x
  3. Step 3: Cross multiply
    443,889x = 612,581.94 × 242,697.96
  4. Step 4: Simplify right side
    443,889x = 148,672,387,170.84
  5. Step 5: Solve for x
    x = 148,672,387,170.84/443,889
  6. Step 6: Final answer
    x = 334,931.45

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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.