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Finding the Fourth Proportional to 287,998.98, 432,191.16 and 119,519.32

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Solution

The fourth proportional to 287,998.98, 432,191.16 and 119,519.32 is: 179,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,998.98 : 432,191.16 = 119,519.32 : x
  2. Step 2: Convert to fraction form
    287,998.98/432,191.16 = 119,519.32/x
  3. Step 3: Cross multiply
    287,998.98x = 432,191.16 × 119,519.32
  4. Step 4: Simplify right side
    287,998.98x = 51,655,193,553.21
  5. Step 5: Solve for x
    x = 51,655,193,553.21/287,998.98
  6. Step 6: Final answer
    x = 179,358.95

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1.5x scale

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.