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Finding the Fourth Proportional to 153,177.75, 229,779.59 and 42,369.75

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Solution

The fourth proportional to 153,177.75, 229,779.59 and 42,369.75 is: 63,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,177.75 : 229,779.59 = 42,369.75 : x
  2. Step 2: Convert to fraction form
    153,177.75/229,779.59 = 42,369.75/x
  3. Step 3: Cross multiply
    153,177.75x = 229,779.59 × 42,369.75
  4. Step 4: Simplify right side
    153,177.75x = 9,735,703,571.55
  5. Step 5: Solve for x
    x = 9,735,703,571.55/153,177.75
  6. Step 6: Final answer
    x = 63,558.21

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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.