Home / 208,465.79-287,577.09-131,855.85

Finding the Fourth Proportional to 208,465.79, 287,577.09 and 131,855.85

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Solution

The fourth proportional to 208,465.79, 287,577.09 and 131,855.85 is: 181,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,465.79 : 287,577.09 = 131,855.85 : x
  2. Step 2: Convert to fraction form
    208,465.79/287,577.09 = 131,855.85/x
  3. Step 3: Cross multiply
    208,465.79x = 287,577.09 × 131,855.85
  4. Step 4: Simplify right side
    208,465.79x = 37,918,721,642.48
  5. Step 5: Solve for x
    x = 37,918,721,642.48/208,465.79
  6. Step 6: Final answer
    x = 181,894.22

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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.