Home / 208,330.90-287,495.30-117,716.20

Finding the Fourth Proportional to 208,330.90, 287,495.30 and 117,716.20

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Solution

The fourth proportional to 208,330.90, 287,495.30 and 117,716.20 is: 162,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,330.90 : 287,495.30 = 117,716.20 : x
  2. Step 2: Convert to fraction form
    208,330.90/287,495.30 = 117,716.20/x
  3. Step 3: Cross multiply
    208,330.90x = 287,495.30 × 117,716.20
  4. Step 4: Simplify right side
    208,330.90x = 33,842,854,233.86
  5. Step 5: Solve for x
    x = 33,842,854,233.86/208,330.90
  6. Step 6: Final answer
    x = 162,447.60

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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.