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Finding the Fourth Proportional to 219,238.19, 328,866.42 and 69,475.16

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Solution

The fourth proportional to 219,238.19, 328,866.42 and 69,475.16 is: 104,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,238.19 : 328,866.42 = 69,475.16 : x
  2. Step 2: Convert to fraction form
    219,238.19/328,866.42 = 69,475.16/x
  3. Step 3: Cross multiply
    219,238.19x = 328,866.42 × 69,475.16
  4. Step 4: Simplify right side
    219,238.19x = 22,848,047,148.13
  5. Step 5: Solve for x
    x = 22,848,047,148.13/219,238.19
  6. Step 6: Final answer
    x = 104,215.64

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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.