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Finding the Fourth Proportional to 243,927.70, 365,891.55 and 144,135.70

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Solution

The fourth proportional to 243,927.70, 365,891.55 and 144,135.70 is: 216,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,927.70 : 365,891.55 = 144,135.70 : x
  2. Step 2: Convert to fraction form
    243,927.70/365,891.55 = 144,135.70/x
  3. Step 3: Cross multiply
    243,927.70x = 365,891.55 × 144,135.70
  4. Step 4: Simplify right side
    243,927.70x = 52,738,034,683.34
  5. Step 5: Solve for x
    x = 52,738,034,683.34/243,927.70
  6. Step 6: Final answer
    x = 216,203.55

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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.