Home / 395,981.61-546,421.96-223,917.17

Finding the Fourth Proportional to 395,981.61, 546,421.96 and 223,917.17

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Solution

The fourth proportional to 395,981.61, 546,421.96 and 223,917.17 is: 308,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,981.61 : 546,421.96 = 223,917.17 : x
  2. Step 2: Convert to fraction form
    395,981.61/546,421.96 = 223,917.17/x
  3. Step 3: Cross multiply
    395,981.61x = 546,421.96 × 223,917.17
  4. Step 4: Simplify right side
    395,981.61x = 122,353,258,909.05
  5. Step 5: Solve for x
    x = 122,353,258,909.05/395,981.61
  6. Step 6: Final answer
    x = 308,987.23

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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.