Home / 283,756.08-391,586-156,436.24

Finding the Fourth Proportional to 283,756.08, 391,586 and 156,436.24

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Solution

The fourth proportional to 283,756.08, 391,586 and 156,436.24 is: 215,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,756.08 : 391,586 = 156,436.24 : x
  2. Step 2: Convert to fraction form
    283,756.08/391,586 = 156,436.24/x
  3. Step 3: Cross multiply
    283,756.08x = 391,586 × 156,436.24
  4. Step 4: Simplify right side
    283,756.08x = 61,258,241,476.64
  5. Step 5: Solve for x
    x = 61,258,241,476.64/283,756.08
  6. Step 6: Final answer
    x = 215,883.45

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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.