Home / 257,841.28-355,814.10-143,119.60

Finding the Fourth Proportional to 257,841.28, 355,814.10 and 143,119.60

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Solution

The fourth proportional to 257,841.28, 355,814.10 and 143,119.60 is: 197,501.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,841.28 : 355,814.10 = 143,119.60 : x
  2. Step 2: Convert to fraction form
    257,841.28/355,814.10 = 143,119.60/x
  3. Step 3: Cross multiply
    257,841.28x = 355,814.10 × 143,119.60
  4. Step 4: Simplify right side
    257,841.28x = 50,923,971,666.36
  5. Step 5: Solve for x
    x = 50,923,971,666.36/257,841.28
  6. Step 6: Final answer
    x = 197,501.24

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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.