Home / 283,452.12-391,159.23-156,139.56

Finding the Fourth Proportional to 283,452.12, 391,159.23 and 156,139.56

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Solution

The fourth proportional to 283,452.12, 391,159.23 and 156,139.56 is: 215,470.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,452.12 : 391,159.23 = 156,139.56 : x
  2. Step 2: Convert to fraction form
    283,452.12/391,159.23 = 156,139.56/x
  3. Step 3: Cross multiply
    283,452.12x = 391,159.23 × 156,139.56
  4. Step 4: Simplify right side
    283,452.12x = 61,075,430,062.14
  5. Step 5: Solve for x
    x = 61,075,430,062.14/283,452.12
  6. Step 6: Final answer
    x = 215,470.01

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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.