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Finding the Fourth Proportional to 450,066.48, 621,102.56 and 256,470.05

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Solution

The fourth proportional to 450,066.48, 621,102.56 and 256,470.05 is: 353,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,066.48 : 621,102.56 = 256,470.05 : x
  2. Step 2: Convert to fraction form
    450,066.48/621,102.56 = 256,470.05/x
  3. Step 3: Cross multiply
    450,066.48x = 621,102.56 × 256,470.05
  4. Step 4: Simplify right side
    450,066.48x = 159,294,200,230.47
  5. Step 5: Solve for x
    x = 159,294,200,230.47/450,066.48
  6. Step 6: Final answer
    x = 353,934.82

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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.