Home / 283,415.40-391,110.66-156,088.26

Finding the Fourth Proportional to 283,415.40, 391,110.66 and 156,088.26

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Solution

The fourth proportional to 283,415.40, 391,110.66 and 156,088.26 is: 215,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,415.40 : 391,110.66 = 156,088.26 : x
  2. Step 2: Convert to fraction form
    283,415.40/391,110.66 = 156,088.26/x
  3. Step 3: Cross multiply
    283,415.40x = 391,110.66 × 156,088.26
  4. Step 4: Simplify right side
    283,415.40x = 61,047,782,386.85
  5. Step 5: Solve for x
    x = 61,047,782,386.85/283,415.40
  6. Step 6: Final answer
    x = 215,400.37

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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.