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Finding the Fourth Proportional to 295,661.80, 443,492.70 and 145,973.80

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Solution

The fourth proportional to 295,661.80, 443,492.70 and 145,973.80 is: 218,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,661.80 : 443,492.70 = 145,973.80 : x
  2. Step 2: Convert to fraction form
    295,661.80/443,492.70 = 145,973.80/x
  3. Step 3: Cross multiply
    295,661.80x = 443,492.70 × 145,973.80
  4. Step 4: Simplify right side
    295,661.80x = 64,738,314,691.26
  5. Step 5: Solve for x
    x = 64,738,314,691.26/295,661.80
  6. Step 6: Final answer
    x = 218,960.70

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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.