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Finding the Fourth Proportional to 288,809.39, 433,426.93 and 137,006.94

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Solution

The fourth proportional to 288,809.39, 433,426.93 and 137,006.94 is: 205,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,809.39 : 433,426.93 = 137,006.94 : x
  2. Step 2: Convert to fraction form
    288,809.39/433,426.93 = 137,006.94/x
  3. Step 3: Cross multiply
    288,809.39x = 433,426.93 × 137,006.94
  4. Step 4: Simplify right side
    288,809.39x = 59,382,499,446.39
  5. Step 5: Solve for x
    x = 59,382,499,446.39/288,809.39
  6. Step 6: Final answer
    x = 205,611.39

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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.