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Finding the Fourth Proportional to 468,129.54, 646,018.47 and 253,269.66

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Solution

The fourth proportional to 468,129.54, 646,018.47 and 253,269.66 is: 349,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,129.54 : 646,018.47 = 253,269.66 : x
  2. Step 2: Convert to fraction form
    468,129.54/646,018.47 = 253,269.66/x
  3. Step 3: Cross multiply
    468,129.54x = 646,018.47 × 253,269.66
  4. Step 4: Simplify right side
    468,129.54x = 163,616,878,250.62
  5. Step 5: Solve for x
    x = 163,616,878,250.62/468,129.54
  6. Step 6: Final answer
    x = 349,511.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.