Home / 283,561.23-391,314.51-156,235.71

Finding the Fourth Proportional to 283,561.23, 391,314.51 and 156,235.71

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Solution

The fourth proportional to 283,561.23, 391,314.51 and 156,235.71 is: 215,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,561.23 : 391,314.51 = 156,235.71 : x
  2. Step 2: Convert to fraction form
    283,561.23/391,314.51 = 156,235.71/x
  3. Step 3: Cross multiply
    283,561.23x = 391,314.51 × 156,235.71
  4. Step 4: Simplify right side
    283,561.23x = 61,137,300,303.15
  5. Step 5: Solve for x
    x = 61,137,300,303.15/283,561.23
  6. Step 6: Final answer
    x = 215,605.29

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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.