Home / 283,703.31-391,528.08-156,378.60

Finding the Fourth Proportional to 283,703.31, 391,528.08 and 156,378.60

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Solution

The fourth proportional to 283,703.31, 391,528.08 and 156,378.60 is: 215,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,703.31 : 391,528.08 = 156,378.60 : x
  2. Step 2: Convert to fraction form
    283,703.31/391,528.08 = 156,378.60/x
  3. Step 3: Cross multiply
    283,703.31x = 391,528.08 × 156,378.60
  4. Step 4: Simplify right side
    283,703.31x = 61,226,613,011.09
  5. Step 5: Solve for x
    x = 61,226,613,011.09/283,703.31
  6. Step 6: Final answer
    x = 215,812.12

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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.