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Finding the Fourth Proportional to 272,307.60, 408,169.80 and 122,522.40

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Solution

The fourth proportional to 272,307.60, 408,169.80 and 122,522.40 is: 183,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,307.60 : 408,169.80 = 122,522.40 : x
  2. Step 2: Convert to fraction form
    272,307.60/408,169.80 = 122,522.40/x
  3. Step 3: Cross multiply
    272,307.60x = 408,169.80 × 122,522.40
  4. Step 4: Simplify right side
    272,307.60x = 50,009,943,503.52
  5. Step 5: Solve for x
    x = 50,009,943,503.52/272,307.60
  6. Step 6: Final answer
    x = 183,652.40

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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.