Home / 257,519.07-355,369.95-142,798.16

Finding the Fourth Proportional to 257,519.07, 355,369.95 and 142,798.16

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Solution

The fourth proportional to 257,519.07, 355,369.95 and 142,798.16 is: 197,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,519.07 : 355,369.95 = 142,798.16 : x
  2. Step 2: Convert to fraction form
    257,519.07/355,369.95 = 142,798.16/x
  3. Step 3: Cross multiply
    257,519.07x = 355,369.95 × 142,798.16
  4. Step 4: Simplify right side
    257,519.07x = 50,746,175,867.72
  5. Step 5: Solve for x
    x = 50,746,175,867.72/257,519.07
  6. Step 6: Final answer
    x = 197,057.93

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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.