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Finding the Fourth Proportional to 257,722.15, 355,674.32 and 144,552.19

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Solution

The fourth proportional to 257,722.15, 355,674.32 and 144,552.19 is: 199,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,722.15 : 355,674.32 = 144,552.19 : x
  2. Step 2: Convert to fraction form
    257,722.15/355,674.32 = 144,552.19/x
  3. Step 3: Cross multiply
    257,722.15x = 355,674.32 × 144,552.19
  4. Step 4: Simplify right side
    257,722.15x = 51,413,500,812.88
  5. Step 5: Solve for x
    x = 51,413,500,812.88/257,722.15
  6. Step 6: Final answer
    x = 199,491.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.