Home / 283,636.69-391,418.63-156,312.28

Finding the Fourth Proportional to 283,636.69, 391,418.63 and 156,312.28

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Solution

The fourth proportional to 283,636.69, 391,418.63 and 156,312.28 is: 215,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,636.69 : 391,418.63 = 156,312.28 : x
  2. Step 2: Convert to fraction form
    283,636.69/391,418.63 = 156,312.28/x
  3. Step 3: Cross multiply
    283,636.69x = 391,418.63 × 156,312.28
  4. Step 4: Simplify right side
    283,636.69x = 61,183,539,002.88
  5. Step 5: Solve for x
    x = 61,183,539,002.88/283,636.69
  6. Step 6: Final answer
    x = 215,710.95

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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.