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Finding the Fourth Proportional to 153,270.55, 229,907.11 and 53,430.55

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Solution

The fourth proportional to 153,270.55, 229,907.11 and 53,430.55 is: 80,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,270.55 : 229,907.11 = 53,430.55 : x
  2. Step 2: Convert to fraction form
    153,270.55/229,907.11 = 53,430.55/x
  3. Step 3: Cross multiply
    153,270.55x = 229,907.11 × 53,430.55
  4. Step 4: Simplify right side
    153,270.55x = 12,284,064,021.28
  5. Step 5: Solve for x
    x = 12,284,064,021.28/153,270.55
  6. Step 6: Final answer
    x = 80,146.28

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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.