Home / 401,090.20-553,756.14-258,098.74

Finding the Fourth Proportional to 401,090.20, 553,756.14 and 258,098.74

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Solution

The fourth proportional to 401,090.20, 553,756.14 and 258,098.74 is: 356,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,090.20 : 553,756.14 = 258,098.74 : x
  2. Step 2: Convert to fraction form
    401,090.20/553,756.14 = 258,098.74/x
  3. Step 3: Cross multiply
    401,090.20x = 553,756.14 × 258,098.74
  4. Step 4: Simplify right side
    401,090.20x = 142,923,762,001.26
  5. Step 5: Solve for x
    x = 142,923,762,001.26/401,090.20
  6. Step 6: Final answer
    x = 356,338.21

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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.