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Finding the Fourth Proportional to 556,018.69, 833,712.06 and 218,876.77

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Solution

The fourth proportional to 556,018.69, 833,712.06 and 218,876.77 is: 328,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,018.69 : 833,712.06 = 218,876.77 : x
  2. Step 2: Convert to fraction form
    556,018.69/833,712.06 = 218,876.77/x
  3. Step 3: Cross multiply
    556,018.69x = 833,712.06 × 218,876.77
  4. Step 4: Simplify right side
    556,018.69x = 182,480,201,708.46
  5. Step 5: Solve for x
    x = 182,480,201,708.46/556,018.69
  6. Step 6: Final answer
    x = 328,190.77

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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.