Home / 283,518.50-391,255.53-156,194.06

Finding the Fourth Proportional to 283,518.50, 391,255.53 and 156,194.06

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Solution

The fourth proportional to 283,518.50, 391,255.53 and 156,194.06 is: 215,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,518.50 : 391,255.53 = 156,194.06 : x
  2. Step 2: Convert to fraction form
    283,518.50/391,255.53 = 156,194.06/x
  3. Step 3: Cross multiply
    283,518.50x = 391,255.53 × 156,194.06
  4. Step 4: Simplify right side
    283,518.50x = 61,111,789,728.15
  5. Step 5: Solve for x
    x = 61,111,789,728.15/283,518.50
  6. Step 6: Final answer
    x = 215,547.80

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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.