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Finding the Fourth Proportional to 370,153.56, 555,451.54 and 340,038.57

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Solution

The fourth proportional to 370,153.56, 555,451.54 and 340,038.57 is: 510,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,153.56 : 555,451.54 = 340,038.57 : x
  2. Step 2: Convert to fraction form
    370,153.56/555,451.54 = 340,038.57/x
  3. Step 3: Cross multiply
    370,153.56x = 555,451.54 × 340,038.57
  4. Step 4: Simplify right side
    370,153.56x = 188,874,947,365.90
  5. Step 5: Solve for x
    x = 188,874,947,365.90/370,153.56
  6. Step 6: Final answer
    x = 510,261.06

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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.