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Finding the Fourth Proportional to 280,303.88, 386,684.81 and 183,465.10

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Solution

The fourth proportional to 280,303.88, 386,684.81 and 183,465.10 is: 253,093.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,303.88 : 386,684.81 = 183,465.10 : x
  2. Step 2: Convert to fraction form
    280,303.88/386,684.81 = 183,465.10/x
  3. Step 3: Cross multiply
    280,303.88x = 386,684.81 × 183,465.10
  4. Step 4: Simplify right side
    280,303.88x = 70,943,167,335.13
  5. Step 5: Solve for x
    x = 70,943,167,335.13/280,303.88
  6. Step 6: Final answer
    x = 253,093.78

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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.