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Finding the Fourth Proportional to 286,522.56, 429,783.30 and 76,160.50

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Solution

The fourth proportional to 286,522.56, 429,783.30 and 76,160.50 is: 114,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,522.56 : 429,783.30 = 76,160.50 : x
  2. Step 2: Convert to fraction form
    286,522.56/429,783.30 = 76,160.50/x
  3. Step 3: Cross multiply
    286,522.56x = 429,783.30 × 76,160.50
  4. Step 4: Simplify right side
    286,522.56x = 32,732,509,945.19
  5. Step 5: Solve for x
    x = 32,732,509,945.19/286,522.56
  6. Step 6: Final answer
    x = 114,240.60

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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.