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Finding the Fourth Proportional to 212,076.50, 292,710.11 and 134,501.81

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Solution

The fourth proportional to 212,076.50, 292,710.11 and 134,501.81 is: 185,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,076.50 : 292,710.11 = 134,501.81 : x
  2. Step 2: Convert to fraction form
    212,076.50/292,710.11 = 134,501.81/x
  3. Step 3: Cross multiply
    212,076.50x = 292,710.11 × 134,501.81
  4. Step 4: Simplify right side
    212,076.50x = 39,370,037,464.24
  5. Step 5: Solve for x
    x = 39,370,037,464.24/212,076.50
  6. Step 6: Final answer
    x = 185,640.74

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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.