Home / 515,132.36-772,690.28-141,155.36

Finding the Fourth Proportional to 515,132.36, 772,690.28 and 141,155.36

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Solution

The fourth proportional to 515,132.36, 772,690.28 and 141,155.36 is: 211,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,132.36 : 772,690.28 = 141,155.36 : x
  2. Step 2: Convert to fraction form
    515,132.36/772,690.28 = 141,155.36/x
  3. Step 3: Cross multiply
    515,132.36x = 772,690.28 × 141,155.36
  4. Step 4: Simplify right side
    515,132.36x = 109,069,374,641.90
  5. Step 5: Solve for x
    x = 109,069,374,641.90/515,132.36
  6. Step 6: Final answer
    x = 211,730.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.