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Finding the Fourth Proportional to 289,510.34, 434,265.69 and 79,132.46

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Solution

The fourth proportional to 289,510.34, 434,265.69 and 79,132.46 is: 118,698.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,510.34 : 434,265.69 = 79,132.46 : x
  2. Step 2: Convert to fraction form
    289,510.34/434,265.69 = 79,132.46/x
  3. Step 3: Cross multiply
    289,510.34x = 434,265.69 × 79,132.46
  4. Step 4: Simplify right side
    289,510.34x = 34,364,512,343.30
  5. Step 5: Solve for x
    x = 34,364,512,343.30/289,510.34
  6. Step 6: Final answer
    x = 118,698.74

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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.