Home / 283,583.76-391,345.22-156,259.35

Finding the Fourth Proportional to 283,583.76, 391,345.22 and 156,259.35

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Solution

The fourth proportional to 283,583.76, 391,345.22 and 156,259.35 is: 215,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,583.76 : 391,345.22 = 156,259.35 : x
  2. Step 2: Convert to fraction form
    283,583.76/391,345.22 = 156,259.35/x
  3. Step 3: Cross multiply
    283,583.76x = 391,345.22 × 156,259.35
  4. Step 4: Simplify right side
    283,583.76x = 61,151,348,921.51
  5. Step 5: Solve for x
    x = 61,151,348,921.51/283,583.76
  6. Step 6: Final answer
    x = 215,637.70

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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.