Home / 257,724.90-355,678.12-144,554.94

Finding the Fourth Proportional to 257,724.90, 355,678.12 and 144,554.94

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Solution

The fourth proportional to 257,724.90, 355,678.12 and 144,554.94 is: 199,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,724.90 : 355,678.12 = 144,554.94 : x
  2. Step 2: Convert to fraction form
    257,724.90/355,678.12 = 144,554.94/x
  3. Step 3: Cross multiply
    257,724.90x = 355,678.12 × 144,554.94
  4. Step 4: Simplify right side
    257,724.90x = 51,415,029,295.91
  5. Step 5: Solve for x
    x = 51,415,029,295.91/257,724.90
  6. Step 6: Final answer
    x = 199,495.78

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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.