Home / 257,318.04-355,112.58-142,609.23

Finding the Fourth Proportional to 257,318.04, 355,112.58 and 142,609.23

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Solution

The fourth proportional to 257,318.04, 355,112.58 and 142,609.23 is: 196,808.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,318.04 : 355,112.58 = 142,609.23 : x
  2. Step 2: Convert to fraction form
    257,318.04/355,112.58 = 142,609.23/x
  3. Step 3: Cross multiply
    257,318.04x = 355,112.58 × 142,609.23
  4. Step 4: Simplify right side
    257,318.04x = 50,642,331,597.11
  5. Step 5: Solve for x
    x = 50,642,331,597.11/257,318.04
  6. Step 6: Final answer
    x = 196,808.32

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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.