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Finding the Fourth Proportional to 344,995.77, 517,329.77 and 120,328.91

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Solution

The fourth proportional to 344,995.77, 517,329.77 and 120,328.91 is: 180,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,995.77 : 517,329.77 = 120,328.91 : x
  2. Step 2: Convert to fraction form
    344,995.77/517,329.77 = 120,328.91/x
  3. Step 3: Cross multiply
    344,995.77x = 517,329.77 × 120,328.91
  4. Step 4: Simplify right side
    344,995.77x = 62,249,724,146.36
  5. Step 5: Solve for x
    x = 62,249,724,146.36/344,995.77
  6. Step 6: Final answer
    x = 180,436.20

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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.