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Finding the Fourth Proportional to 369,880.30, 554,820.54 and 103,680.28

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Solution

The fourth proportional to 369,880.30, 554,820.54 and 103,680.28 is: 155,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,880.30 : 554,820.54 = 103,680.28 : x
  2. Step 2: Convert to fraction form
    369,880.30/554,820.54 = 103,680.28/x
  3. Step 3: Cross multiply
    369,880.30x = 554,820.54 × 103,680.28
  4. Step 4: Simplify right side
    369,880.30x = 57,523,948,936.95
  5. Step 5: Solve for x
    x = 57,523,948,936.95/369,880.30
  6. Step 6: Final answer
    x = 155,520.45

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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.