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Finding the Fourth Proportional to 369,290, 553,878.84 and 103,022.48

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Solution

The fourth proportional to 369,290, 553,878.84 and 103,022.48 is: 154,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,290 : 553,878.84 = 103,022.48 : x
  2. Step 2: Convert to fraction form
    369,290/553,878.84 = 103,022.48/x
  3. Step 3: Cross multiply
    369,290x = 553,878.84 × 103,022.48
  4. Step 4: Simplify right side
    369,290x = 57,061,971,716.32
  5. Step 5: Solve for x
    x = 57,061,971,716.32/369,290
  6. Step 6: Final answer
    x = 154,518.05

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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.