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Finding the Fourth Proportional to 553,462.88, 830,179.73 and 154,087.52

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Solution

The fourth proportional to 553,462.88, 830,179.73 and 154,087.52 is: 231,127.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,462.88 : 830,179.73 = 154,087.52 : x
  2. Step 2: Convert to fraction form
    553,462.88/830,179.73 = 154,087.52/x
  3. Step 3: Cross multiply
    553,462.88x = 830,179.73 × 154,087.52
  4. Step 4: Simplify right side
    553,462.88x = 127,920,331,984.29
  5. Step 5: Solve for x
    x = 127,920,331,984.29/553,462.88
  6. Step 6: Final answer
    x = 231,127.21

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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.