Home / 283,643.48-391,420.32-156,319.04

Finding the Fourth Proportional to 283,643.48, 391,420.32 and 156,319.04

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Solution

The fourth proportional to 283,643.48, 391,420.32 and 156,319.04 is: 215,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,643.48 : 391,420.32 = 156,319.04 : x
  2. Step 2: Convert to fraction form
    283,643.48/391,420.32 = 156,319.04/x
  3. Step 3: Cross multiply
    283,643.48x = 391,420.32 × 156,319.04
  4. Step 4: Simplify right side
    283,643.48x = 61,186,448,658.89
  5. Step 5: Solve for x
    x = 61,186,448,658.89/283,643.48
  6. Step 6: Final answer
    x = 215,716.04

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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.