Home / 257,842.02-355,824.72-143,122.80

Finding the Fourth Proportional to 257,842.02, 355,824.72 and 143,122.80

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Solution

The fourth proportional to 257,842.02, 355,824.72 and 143,122.80 is: 197,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,842.02 : 355,824.72 = 143,122.80 : x
  2. Step 2: Convert to fraction form
    257,842.02/355,824.72 = 143,122.80/x
  3. Step 3: Cross multiply
    257,842.02x = 355,824.72 × 143,122.80
  4. Step 4: Simplify right side
    257,842.02x = 50,926,630,235.62
  5. Step 5: Solve for x
    x = 50,926,630,235.62/257,842.02
  6. Step 6: Final answer
    x = 197,510.98

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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.