Home / 395,236.20-592,792.64-128,937.68

Finding the Fourth Proportional to 395,236.20, 592,792.64 and 128,937.68

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Solution

The fourth proportional to 395,236.20, 592,792.64 and 128,937.68 is: 193,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,236.20 : 592,792.64 = 128,937.68 : x
  2. Step 2: Convert to fraction form
    395,236.20/592,792.64 = 128,937.68/x
  3. Step 3: Cross multiply
    395,236.20x = 592,792.64 × 128,937.68
  4. Step 4: Simplify right side
    395,236.20x = 76,433,307,722.68
  5. Step 5: Solve for x
    x = 76,433,307,722.68/395,236.20
  6. Step 6: Final answer
    x = 193,386.40

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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.