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Finding the Fourth Proportional to 286,522.80, 429,784.20 and 223,537.20

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Solution

The fourth proportional to 286,522.80, 429,784.20 and 223,537.20 is: 335,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,522.80 : 429,784.20 = 223,537.20 : x
  2. Step 2: Convert to fraction form
    286,522.80/429,784.20 = 223,537.20/x
  3. Step 3: Cross multiply
    286,522.80x = 429,784.20 × 223,537.20
  4. Step 4: Simplify right side
    286,522.80x = 96,072,756,672.24
  5. Step 5: Solve for x
    x = 96,072,756,672.24/286,522.80
  6. Step 6: Final answer
    x = 335,305.80

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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.