Home / 395,220.96-592,925.76-128,981.97

Finding the Fourth Proportional to 395,220.96, 592,925.76 and 128,981.97

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Solution

The fourth proportional to 395,220.96, 592,925.76 and 128,981.97 is: 193,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,220.96 : 592,925.76 = 128,981.97 : x
  2. Step 2: Convert to fraction form
    395,220.96/592,925.76 = 128,981.97/x
  3. Step 3: Cross multiply
    395,220.96x = 592,925.76 × 128,981.97
  4. Step 4: Simplify right side
    395,220.96x = 76,476,732,588.55
  5. Step 5: Solve for x
    x = 76,476,732,588.55/395,220.96
  6. Step 6: Final answer
    x = 193,503.74

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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.