Home / 395,390.12-592,962.59-142,637.76

Finding the Fourth Proportional to 395,390.12, 592,962.59 and 142,637.76

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Solution

The fourth proportional to 395,390.12, 592,962.59 and 142,637.76 is: 213,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,390.12 : 592,962.59 = 142,637.76 : x
  2. Step 2: Convert to fraction form
    395,390.12/592,962.59 = 142,637.76/x
  3. Step 3: Cross multiply
    395,390.12x = 592,962.59 × 142,637.76
  4. Step 4: Simplify right side
    395,390.12x = 84,578,857,683.72
  5. Step 5: Solve for x
    x = 84,578,857,683.72/395,390.12
  6. Step 6: Final answer
    x = 213,912.42

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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.