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Finding the Fourth Proportional to 369,622.42, 510,078.21 and 208,476.97

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Solution

The fourth proportional to 369,622.42, 510,078.21 and 208,476.97 is: 287,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,622.42 : 510,078.21 = 208,476.97 : x
  2. Step 2: Convert to fraction form
    369,622.42/510,078.21 = 208,476.97/x
  3. Step 3: Cross multiply
    369,622.42x = 510,078.21 × 208,476.97
  4. Step 4: Simplify right side
    369,622.42x = 106,339,559,683.82
  5. Step 5: Solve for x
    x = 106,339,559,683.82/369,622.42
  6. Step 6: Final answer
    x = 287,697.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.