Home / 283,723.50-391,541.12-156,403.65

Finding the Fourth Proportional to 283,723.50, 391,541.12 and 156,403.65

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Solution

The fourth proportional to 283,723.50, 391,541.12 and 156,403.65 is: 215,838.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,723.50 : 391,541.12 = 156,403.65 : x
  2. Step 2: Convert to fraction form
    283,723.50/391,541.12 = 156,403.65/x
  3. Step 3: Cross multiply
    283,723.50x = 391,541.12 × 156,403.65
  4. Step 4: Simplify right side
    283,723.50x = 61,238,460,293.09
  5. Step 5: Solve for x
    x = 61,238,460,293.09/283,723.50
  6. Step 6: Final answer
    x = 215,838.52

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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.