Home / 355,894.32-491,085.60-212,623.92

Finding the Fourth Proportional to 355,894.32, 491,085.60 and 212,623.92

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Solution

The fourth proportional to 355,894.32, 491,085.60 and 212,623.92 is: 293,392.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,894.32 : 491,085.60 = 212,623.92 : x
  2. Step 2: Convert to fraction form
    355,894.32/491,085.60 = 212,623.92/x
  3. Step 3: Cross multiply
    355,894.32x = 491,085.60 × 212,623.92
  4. Step 4: Simplify right side
    355,894.32x = 104,416,545,327.55
  5. Step 5: Solve for x
    x = 104,416,545,327.55/355,894.32
  6. Step 6: Final answer
    x = 293,392.00

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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.