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Finding the Fourth Proportional to 219,303.82, 328,967.47 and 69,555.47

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Solution

The fourth proportional to 219,303.82, 328,967.47 and 69,555.47 is: 104,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,303.82 : 328,967.47 = 69,555.47 : x
  2. Step 2: Convert to fraction form
    219,303.82/328,967.47 = 69,555.47/x
  3. Step 3: Cross multiply
    219,303.82x = 328,967.47 × 69,555.47
  4. Step 4: Simplify right side
    219,303.82x = 22,881,486,990.56
  5. Step 5: Solve for x
    x = 22,881,486,990.56/219,303.82
  6. Step 6: Final answer
    x = 104,336.93

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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.