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Finding the Fourth Proportional to 262,051.70, 393,369.15 and 143,953.70

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Solution

The fourth proportional to 262,051.70, 393,369.15 and 143,953.70 is: 216,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,051.70 : 393,369.15 = 143,953.70 : x
  2. Step 2: Convert to fraction form
    262,051.70/393,369.15 = 143,953.70/x
  3. Step 3: Cross multiply
    262,051.70x = 393,369.15 × 143,953.70
  4. Step 4: Simplify right side
    262,051.70x = 56,626,944,608.36
  5. Step 5: Solve for x
    x = 56,626,944,608.36/262,051.70
  6. Step 6: Final answer
    x = 216,090.74

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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.