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Finding the Fourth Proportional to 270,970.50, 406,369.60 and 253,280.36

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Solution

The fourth proportional to 270,970.50, 406,369.60 and 253,280.36 is: 379,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,970.50 : 406,369.60 = 253,280.36 : x
  2. Step 2: Convert to fraction form
    270,970.50/406,369.60 = 253,280.36/x
  3. Step 3: Cross multiply
    270,970.50x = 406,369.60 × 253,280.36
  4. Step 4: Simplify right side
    270,970.50x = 102,925,438,581.06
  5. Step 5: Solve for x
    x = 102,925,438,581.06/270,970.50
  6. Step 6: Final answer
    x = 379,840.01

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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.