Home / 257,029.05-354,700.02-143,851.80

Finding the Fourth Proportional to 257,029.05, 354,700.02 and 143,851.80

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Solution

The fourth proportional to 257,029.05, 354,700.02 and 143,851.80 is: 198,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,029.05 : 354,700.02 = 143,851.80 : x
  2. Step 2: Convert to fraction form
    257,029.05/354,700.02 = 143,851.80/x
  3. Step 3: Cross multiply
    257,029.05x = 354,700.02 × 143,851.80
  4. Step 4: Simplify right side
    257,029.05x = 51,024,236,337.04
  5. Step 5: Solve for x
    x = 51,024,236,337.04/257,029.05
  6. Step 6: Final answer
    x = 198,515.45

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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.