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Finding the Fourth Proportional to 265,377.60, 397,029.60 and 172,065.60

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Solution

The fourth proportional to 265,377.60, 397,029.60 and 172,065.60 is: 257,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,377.60 : 397,029.60 = 172,065.60 : x
  2. Step 2: Convert to fraction form
    265,377.60/397,029.60 = 172,065.60/x
  3. Step 3: Cross multiply
    265,377.60x = 397,029.60 × 172,065.60
  4. Step 4: Simplify right side
    265,377.60x = 68,315,136,341.76
  5. Step 5: Solve for x
    x = 68,315,136,341.76/265,377.60
  6. Step 6: Final answer
    x = 257,426.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.