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Finding the Fourth Proportional to 553,747.88, 830,668.66 and 154,389

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Solution

The fourth proportional to 553,747.88, 830,668.66 and 154,389 is: 231,596.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,747.88 : 830,668.66 = 154,389 : x
  2. Step 2: Convert to fraction form
    553,747.88/830,668.66 = 154,389/x
  3. Step 3: Cross multiply
    553,747.88x = 830,668.66 × 154,389
  4. Step 4: Simplify right side
    553,747.88x = 128,246,103,748.74
  5. Step 5: Solve for x
    x = 128,246,103,748.74/553,747.88
  6. Step 6: Final answer
    x = 231,596.56

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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.