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Finding the Fourth Proportional to 405,114.30, 607,671.45 and 254,867.40

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Solution

The fourth proportional to 405,114.30, 607,671.45 and 254,867.40 is: 382,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,114.30 : 607,671.45 = 254,867.40 : x
  2. Step 2: Convert to fraction form
    405,114.30/607,671.45 = 254,867.40/x
  3. Step 3: Cross multiply
    405,114.30x = 607,671.45 × 254,867.40
  4. Step 4: Simplify right side
    405,114.30x = 154,875,642,515.73
  5. Step 5: Solve for x
    x = 154,875,642,515.73/405,114.30
  6. Step 6: Final answer
    x = 382,301.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.