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Finding the Fourth Proportional to 286,511.68, 429,067.50 and 247,320.64

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Solution

The fourth proportional to 286,511.68, 429,067.50 and 247,320.64 is: 370,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,511.68 : 429,067.50 = 247,320.64 : x
  2. Step 2: Convert to fraction form
    286,511.68/429,067.50 = 247,320.64/x
  3. Step 3: Cross multiply
    286,511.68x = 429,067.50 × 247,320.64
  4. Step 4: Simplify right side
    286,511.68x = 106,117,248,703.20
  5. Step 5: Solve for x
    x = 106,117,248,703.20/286,511.68
  6. Step 6: Final answer
    x = 370,376.69

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1.5x scale

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.