Home / 287,446.07-431,550.60-245,595.08

Finding the Fourth Proportional to 287,446.07, 431,550.60 and 245,595.08

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Solution

The fourth proportional to 287,446.07, 431,550.60 and 245,595.08 is: 368,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,446.07 : 431,550.60 = 245,595.08 : x
  2. Step 2: Convert to fraction form
    287,446.07/431,550.60 = 245,595.08/x
  3. Step 3: Cross multiply
    287,446.07x = 431,550.60 × 245,595.08
  4. Step 4: Simplify right side
    287,446.07x = 105,986,704,131.05
  5. Step 5: Solve for x
    x = 105,986,704,131.05/287,446.07
  6. Step 6: Final answer
    x = 368,718.57

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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.