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Finding the Fourth Proportional to 161,675.20, 242,512.80 and 144,762.40

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Solution

The fourth proportional to 161,675.20, 242,512.80 and 144,762.40 is: 217,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,675.20 : 242,512.80 = 144,762.40 : x
  2. Step 2: Convert to fraction form
    161,675.20/242,512.80 = 144,762.40/x
  3. Step 3: Cross multiply
    161,675.20x = 242,512.80 × 144,762.40
  4. Step 4: Simplify right side
    161,675.20x = 35,106,734,958.72
  5. Step 5: Solve for x
    x = 35,106,734,958.72/161,675.20
  6. Step 6: Final answer
    x = 217,143.60

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1.5x scale

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.