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Finding the Fourth Proportional to 265,145.36, 397,780.32 and 87,652.35

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Solution

The fourth proportional to 265,145.36, 397,780.32 and 87,652.35 is: 131,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,145.36 : 397,780.32 = 87,652.35 : x
  2. Step 2: Convert to fraction form
    265,145.36/397,780.32 = 87,652.35/x
  3. Step 3: Cross multiply
    265,145.36x = 397,780.32 × 87,652.35
  4. Step 4: Simplify right side
    265,145.36x = 34,866,379,831.75
  5. Step 5: Solve for x
    x = 34,866,379,831.75/265,145.36
  6. Step 6: Final answer
    x = 131,499.12

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1.5x scale

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.