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Finding the Fourth Proportional to 455,271.95, 628,243.04 and 251,290.14

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Solution

The fourth proportional to 455,271.95, 628,243.04 and 251,290.14 is: 346,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,271.95 : 628,243.04 = 251,290.14 : x
  2. Step 2: Convert to fraction form
    455,271.95/628,243.04 = 251,290.14/x
  3. Step 3: Cross multiply
    455,271.95x = 628,243.04 × 251,290.14
  4. Step 4: Simplify right side
    455,271.95x = 157,871,280,219.18
  5. Step 5: Solve for x
    x = 157,871,280,219.18/455,271.95
  6. Step 6: Final answer
    x = 346,762.59

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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.