Home / 257,913.68-355,955.64-144,742.64

Finding the Fourth Proportional to 257,913.68, 355,955.64 and 144,742.64

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Solution

The fourth proportional to 257,913.68, 355,955.64 and 144,742.64 is: 199,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,913.68 : 355,955.64 = 144,742.64 : x
  2. Step 2: Convert to fraction form
    257,913.68/355,955.64 = 144,742.64/x
  3. Step 3: Cross multiply
    257,913.68x = 355,955.64 × 144,742.64
  4. Step 4: Simplify right side
    257,913.68x = 51,521,959,056.49
  5. Step 5: Solve for x
    x = 51,521,959,056.49/257,913.68
  6. Step 6: Final answer
    x = 199,764.35

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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.