Home / 349,629.60-524,098.80-138,986.40

Finding the Fourth Proportional to 349,629.60, 524,098.80 and 138,986.40

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Solution

The fourth proportional to 349,629.60, 524,098.80 and 138,986.40 is: 208,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,629.60 : 524,098.80 = 138,986.40 : x
  2. Step 2: Convert to fraction form
    349,629.60/524,098.80 = 138,986.40/x
  3. Step 3: Cross multiply
    349,629.60x = 524,098.80 × 138,986.40
  4. Step 4: Simplify right side
    349,629.60x = 72,842,605,456.32
  5. Step 5: Solve for x
    x = 72,842,605,456.32/349,629.60
  6. Step 6: Final answer
    x = 208,342.22

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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.