Home / 283,719.42-391,501.89-156,370.50

Finding the Fourth Proportional to 283,719.42, 391,501.89 and 156,370.50

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Solution

The fourth proportional to 283,719.42, 391,501.89 and 156,370.50 is: 215,774.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,719.42 : 391,501.89 = 156,370.50 : x
  2. Step 2: Convert to fraction form
    283,719.42/391,501.89 = 156,370.50/x
  3. Step 3: Cross multiply
    283,719.42x = 391,501.89 × 156,370.50
  4. Step 4: Simplify right side
    283,719.42x = 61,219,346,290.25
  5. Step 5: Solve for x
    x = 61,219,346,290.25/283,719.42
  6. Step 6: Final answer
    x = 215,774.25

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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.