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Finding the Fourth Proportional to 450,066.72, 621,248.48 and 259,156.20

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Solution

The fourth proportional to 450,066.72, 621,248.48 and 259,156.20 is: 357,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,066.72 : 621,248.48 = 259,156.20 : x
  2. Step 2: Convert to fraction form
    450,066.72/621,248.48 = 259,156.20/x
  3. Step 3: Cross multiply
    450,066.72x = 621,248.48 × 259,156.20
  4. Step 4: Simplify right side
    450,066.72x = 161,000,398,796.07
  5. Step 5: Solve for x
    x = 161,000,398,796.07/450,066.72
  6. Step 6: Final answer
    x = 357,725.62

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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.