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Finding the Fourth Proportional to 189,437.64, 284,193.92 and 69,495.72

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Solution

The fourth proportional to 189,437.64, 284,193.92 and 69,495.72 is: 104,257.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,437.64 : 284,193.92 = 69,495.72 : x
  2. Step 2: Convert to fraction form
    189,437.64/284,193.92 = 69,495.72/x
  3. Step 3: Cross multiply
    189,437.64x = 284,193.92 × 69,495.72
  4. Step 4: Simplify right side
    189,437.64x = 19,750,261,090.02
  5. Step 5: Solve for x
    x = 19,750,261,090.02/189,437.64
  6. Step 6: Final answer
    x = 104,257.32

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1.5x scale

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.