Home / 257,317.35-355,094.05-144,144.15

Finding the Fourth Proportional to 257,317.35, 355,094.05 and 144,144.15

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Solution

The fourth proportional to 257,317.35, 355,094.05 and 144,144.15 is: 198,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,317.35 : 355,094.05 = 144,144.15 : x
  2. Step 2: Convert to fraction form
    257,317.35/355,094.05 = 144,144.15/x
  3. Step 3: Cross multiply
    257,317.35x = 355,094.05 × 144,144.15
  4. Step 4: Simplify right side
    257,317.35x = 51,184,730,007.31
  5. Step 5: Solve for x
    x = 51,184,730,007.31/257,317.35
  6. Step 6: Final answer
    x = 198,916.75

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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.