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Finding the Fourth Proportional to 369,440.80, 509,818.08 and 208,294.44

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Solution

The fourth proportional to 369,440.80, 509,818.08 and 208,294.44 is: 287,440.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,440.80 : 509,818.08 = 208,294.44 : x
  2. Step 2: Convert to fraction form
    369,440.80/509,818.08 = 208,294.44/x
  3. Step 3: Cross multiply
    369,440.80x = 509,818.08 × 208,294.44
  4. Step 4: Simplify right side
    369,440.80x = 106,192,271,475.48
  5. Step 5: Solve for x
    x = 106,192,271,475.48/369,440.80
  6. Step 6: Final answer
    x = 287,440.56

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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.