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Finding the Fourth Proportional to 219,240.68, 328,870.17 and 69,477.66

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Solution

The fourth proportional to 219,240.68, 328,870.17 and 69,477.66 is: 104,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,240.68 : 328,870.17 = 69,477.66 : x
  2. Step 2: Convert to fraction form
    219,240.68/328,870.17 = 69,477.66/x
  3. Step 3: Cross multiply
    219,240.68x = 328,870.17 × 69,477.66
  4. Step 4: Simplify right side
    219,240.68x = 22,849,129,855.40
  5. Step 5: Solve for x
    x = 22,849,129,855.40/219,240.68
  6. Step 6: Final answer
    x = 104,219.39

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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.