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Finding the Fourth Proportional to 289,880.68, 434,801.58 and 79,501

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Solution

The fourth proportional to 289,880.68, 434,801.58 and 79,501 is: 119,246.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,880.68 : 434,801.58 = 79,501 : x
  2. Step 2: Convert to fraction form
    289,880.68/434,801.58 = 79,501/x
  3. Step 3: Cross multiply
    289,880.68x = 434,801.58 × 79,501
  4. Step 4: Simplify right side
    289,880.68x = 34,567,160,411.58
  5. Step 5: Solve for x
    x = 34,567,160,411.58/289,880.68
  6. Step 6: Final answer
    x = 119,246.17

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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.