Home / 355,931.96-491,110.15-210,783.35

Finding the Fourth Proportional to 355,931.96, 491,110.15 and 210,783.35

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Solution

The fourth proportional to 355,931.96, 491,110.15 and 210,783.35 is: 290,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,931.96 : 491,110.15 = 210,783.35 : x
  2. Step 2: Convert to fraction form
    355,931.96/491,110.15 = 210,783.35/x
  3. Step 3: Cross multiply
    355,931.96x = 491,110.15 × 210,783.35
  4. Step 4: Simplify right side
    355,931.96x = 103,517,842,636.00
  5. Step 5: Solve for x
    x = 103,517,842,636.00/355,931.96
  6. Step 6: Final answer
    x = 290,836.04

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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.