Home / 284,234.69-392,245.13-156,911.33

Finding the Fourth Proportional to 284,234.69, 392,245.13 and 156,911.33

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Solution

The fourth proportional to 284,234.69, 392,245.13 and 156,911.33 is: 216,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,234.69 : 392,245.13 = 156,911.33 : x
  2. Step 2: Convert to fraction form
    284,234.69/392,245.13 = 156,911.33/x
  3. Step 3: Cross multiply
    284,234.69x = 392,245.13 × 156,911.33
  4. Step 4: Simplify right side
    284,234.69x = 61,547,704,249.77
  5. Step 5: Solve for x
    x = 61,547,704,249.77/284,234.69
  6. Step 6: Final answer
    x = 216,538.33

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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.