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Finding the Fourth Proportional to 286,337.40, 429,506.10 and 270,007.80

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Solution

The fourth proportional to 286,337.40, 429,506.10 and 270,007.80 is: 405,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,337.40 : 429,506.10 = 270,007.80 : x
  2. Step 2: Convert to fraction form
    286,337.40/429,506.10 = 270,007.80/x
  3. Step 3: Cross multiply
    286,337.40x = 429,506.10 × 270,007.80
  4. Step 4: Simplify right side
    286,337.40x = 115,969,997,147.58
  5. Step 5: Solve for x
    x = 115,969,997,147.58/286,337.40
  6. Step 6: Final answer
    x = 405,011.70

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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.