Home / 283,740.48-391,554-156,416.04

Finding the Fourth Proportional to 283,740.48, 391,554 and 156,416.04

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Solution

The fourth proportional to 283,740.48, 391,554 and 156,416.04 is: 215,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,740.48 : 391,554 = 156,416.04 : x
  2. Step 2: Convert to fraction form
    283,740.48/391,554 = 156,416.04/x
  3. Step 3: Cross multiply
    283,740.48x = 391,554 × 156,416.04
  4. Step 4: Simplify right side
    283,740.48x = 61,245,326,126.16
  5. Step 5: Solve for x
    x = 61,245,326,126.16/283,740.48
  6. Step 6: Final answer
    x = 215,849.80

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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.