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Finding the Fourth Proportional to 371,153.76, 556,458 and 118,288.74

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Solution

The fourth proportional to 371,153.76, 556,458 and 118,288.74 is: 177,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,153.76 : 556,458 = 118,288.74 : x
  2. Step 2: Convert to fraction form
    371,153.76/556,458 = 118,288.74/x
  3. Step 3: Cross multiply
    371,153.76x = 556,458 × 118,288.74
  4. Step 4: Simplify right side
    371,153.76x = 65,822,715,682.92
  5. Step 5: Solve for x
    x = 65,822,715,682.92/371,153.76
  6. Step 6: Final answer
    x = 177,346.22

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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.