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Finding the Fourth Proportional to 345,668.88, 518,503.32 and 109,030.01

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Solution

The fourth proportional to 345,668.88, 518,503.32 and 109,030.01 is: 163,545.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,668.88 : 518,503.32 = 109,030.01 : x
  2. Step 2: Convert to fraction form
    345,668.88/518,503.32 = 109,030.01/x
  3. Step 3: Cross multiply
    345,668.88x = 518,503.32 × 109,030.01
  4. Step 4: Simplify right side
    345,668.88x = 56,532,419,572.12
  5. Step 5: Solve for x
    x = 56,532,419,572.12/345,668.88
  6. Step 6: Final answer
    x = 163,545.01

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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.