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Finding the Fourth Proportional to 286,527.78, 395,421.75 and 159,205.50

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Solution

The fourth proportional to 286,527.78, 395,421.75 and 159,205.50 is: 219,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,527.78 : 395,421.75 = 159,205.50 : x
  2. Step 2: Convert to fraction form
    286,527.78/395,421.75 = 159,205.50/x
  3. Step 3: Cross multiply
    286,527.78x = 395,421.75 × 159,205.50
  4. Step 4: Simplify right side
    286,527.78x = 62,953,317,419.63
  5. Step 5: Solve for x
    x = 62,953,317,419.63/286,527.78
  6. Step 6: Final answer
    x = 219,711.04

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1.5x scale

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.