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Finding the Fourth Proportional to 480,066.53, 720,203.59 and 255,394.31

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Solution

The fourth proportional to 480,066.53, 720,203.59 and 255,394.31 is: 383,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,066.53 : 720,203.59 = 255,394.31 : x
  2. Step 2: Convert to fraction form
    480,066.53/720,203.59 = 255,394.31/x
  3. Step 3: Cross multiply
    480,066.53x = 720,203.59 × 255,394.31
  4. Step 4: Simplify right side
    480,066.53x = 183,935,898,927.57
  5. Step 5: Solve for x
    x = 183,935,898,927.57/480,066.53
  6. Step 6: Final answer
    x = 383,146.68

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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.