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Finding the Fourth Proportional to 176,715.40, 264,878.70 and 76,858.60

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Solution

The fourth proportional to 176,715.40, 264,878.70 and 76,858.60 is: 115,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,715.40 : 264,878.70 = 76,858.60 : x
  2. Step 2: Convert to fraction form
    176,715.40/264,878.70 = 76,858.60/x
  3. Step 3: Cross multiply
    176,715.40x = 264,878.70 × 76,858.60
  4. Step 4: Simplify right side
    176,715.40x = 20,358,206,051.82
  5. Step 5: Solve for x
    x = 20,358,206,051.82/176,715.40
  6. Step 6: Final answer
    x = 115,203.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.