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Finding the Fourth Proportional to 286,547.88, 429,709.50 and 168,249

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Solution

The fourth proportional to 286,547.88, 429,709.50 and 168,249 is: 252,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,547.88 : 429,709.50 = 168,249 : x
  2. Step 2: Convert to fraction form
    286,547.88/429,709.50 = 168,249/x
  3. Step 3: Cross multiply
    286,547.88x = 429,709.50 × 168,249
  4. Step 4: Simplify right side
    286,547.88x = 72,298,193,665.50
  5. Step 5: Solve for x
    x = 72,298,193,665.50/286,547.88
  6. Step 6: Final answer
    x = 252,307.55

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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.