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Finding the Fourth Proportional to 208,330.59, 287,494.88 and 117,715.89

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Solution

The fourth proportional to 208,330.59, 287,494.88 and 117,715.89 is: 162,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,330.59 : 287,494.88 = 117,715.89 : x
  2. Step 2: Convert to fraction form
    208,330.59/287,494.88 = 117,715.89/x
  3. Step 3: Cross multiply
    208,330.59x = 287,494.88 × 117,715.89
  4. Step 4: Simplify right side
    208,330.59x = 33,842,715,081.06
  5. Step 5: Solve for x
    x = 33,842,715,081.06/208,330.59
  6. Step 6: Final answer
    x = 162,447.17

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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.