Home / 283,838.02-391,696.23-156,521.68

Finding the Fourth Proportional to 283,838.02, 391,696.23 and 156,521.68

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Solution

The fourth proportional to 283,838.02, 391,696.23 and 156,521.68 is: 215,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,838.02 : 391,696.23 = 156,521.68 : x
  2. Step 2: Convert to fraction form
    283,838.02/391,696.23 = 156,521.68/x
  3. Step 3: Cross multiply
    283,838.02x = 391,696.23 × 156,521.68
  4. Step 4: Simplify right side
    283,838.02x = 61,308,951,969.27
  5. Step 5: Solve for x
    x = 61,308,951,969.27/283,838.02
  6. Step 6: Final answer
    x = 215,999.79

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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.