Home / 221,088.11-305,070.83-124,278.28

Finding the Fourth Proportional to 221,088.11, 305,070.83 and 124,278.28

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Solution

The fourth proportional to 221,088.11, 305,070.83 and 124,278.28 is: 171,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,088.11 : 305,070.83 = 124,278.28 : x
  2. Step 2: Convert to fraction form
    221,088.11/305,070.83 = 124,278.28/x
  3. Step 3: Cross multiply
    221,088.11x = 305,070.83 × 124,278.28
  4. Step 4: Simplify right side
    221,088.11x = 37,913,676,646.50
  5. Step 5: Solve for x
    x = 37,913,676,646.50/221,088.11
  6. Step 6: Final answer
    x = 171,486.73

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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.