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Finding the Fourth Proportional to 453,410.66, 625,281.93 and 281,356.54

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Solution

The fourth proportional to 453,410.66, 625,281.93 and 281,356.54 is: 388,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,410.66 : 625,281.93 = 281,356.54 : x
  2. Step 2: Convert to fraction form
    453,410.66/625,281.93 = 281,356.54/x
  3. Step 3: Cross multiply
    453,410.66x = 625,281.93 × 281,356.54
  4. Step 4: Simplify right side
    453,410.66x = 175,927,158,786.12
  5. Step 5: Solve for x
    x = 175,927,158,786.12/453,410.66
  6. Step 6: Final answer
    x = 388,008.43

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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.