Home / 208,274.08-287,417.82-112,780.48

Finding the Fourth Proportional to 208,274.08, 287,417.82 and 112,780.48

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Solution

The fourth proportional to 208,274.08, 287,417.82 and 112,780.48 is: 155,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,274.08 : 287,417.82 = 112,780.48 : x
  2. Step 2: Convert to fraction form
    208,274.08/287,417.82 = 112,780.48/x
  3. Step 3: Cross multiply
    208,274.08x = 287,417.82 × 112,780.48
  4. Step 4: Simplify right side
    208,274.08x = 32,415,119,700.15
  5. Step 5: Solve for x
    x = 32,415,119,700.15/208,274.08
  6. Step 6: Final answer
    x = 155,636.84

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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.