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Finding the Fourth Proportional to 345,307.59, 517,962.39 and 120,668.06

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Solution

The fourth proportional to 345,307.59, 517,962.39 and 120,668.06 is: 181,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,307.59 : 517,962.39 = 120,668.06 : x
  2. Step 2: Convert to fraction form
    345,307.59/517,962.39 = 120,668.06/x
  3. Step 3: Cross multiply
    345,307.59x = 517,962.39 × 120,668.06
  4. Step 4: Simplify right side
    345,307.59x = 62,501,514,164.45
  5. Step 5: Solve for x
    x = 62,501,514,164.45/345,307.59
  6. Step 6: Final answer
    x = 181,002.43

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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.