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Finding the Fourth Proportional to 450,000.80, 621,157.36 and 259,090.28

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Solution

The fourth proportional to 450,000.80, 621,157.36 and 259,090.28 is: 357,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,000.80 : 621,157.36 = 259,090.28 : x
  2. Step 2: Convert to fraction form
    450,000.80/621,157.36 = 259,090.28/x
  3. Step 3: Cross multiply
    450,000.80x = 621,157.36 × 259,090.28
  4. Step 4: Simplify right side
    450,000.80x = 160,935,834,326.46
  5. Step 5: Solve for x
    x = 160,935,834,326.46/450,000.80
  6. Step 6: Final answer
    x = 357,634.55

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1.5x scale

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.