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Finding the Fourth Proportional to 538,780.70, 808,280.40 and 183,830.60

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Solution

The fourth proportional to 538,780.70, 808,280.40 and 183,830.60 is: 275,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,780.70 : 808,280.40 = 183,830.60 : x
  2. Step 2: Convert to fraction form
    538,780.70/808,280.40 = 183,830.60/x
  3. Step 3: Cross multiply
    538,780.70x = 808,280.40 × 183,830.60
  4. Step 4: Simplify right side
    538,780.70x = 148,586,670,900.24
  5. Step 5: Solve for x
    x = 148,586,670,900.24/538,780.70
  6. Step 6: Final answer
    x = 275,783.21

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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.