Home / 257,938.16-355,971.48-144,768.56

Finding the Fourth Proportional to 257,938.16, 355,971.48 and 144,768.56

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Solution

The fourth proportional to 257,938.16, 355,971.48 and 144,768.56 is: 199,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,938.16 : 355,971.48 = 144,768.56 : x
  2. Step 2: Convert to fraction form
    257,938.16/355,971.48 = 144,768.56/x
  3. Step 3: Cross multiply
    257,938.16x = 355,971.48 × 144,768.56
  4. Step 4: Simplify right side
    257,938.16x = 51,533,478,560.67
  5. Step 5: Solve for x
    x = 51,533,478,560.67/257,938.16
  6. Step 6: Final answer
    x = 199,790.05

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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.