Home / 287,531.88-430,641.72-253,895.82

Finding the Fourth Proportional to 287,531.88, 430,641.72 and 253,895.82

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Solution

The fourth proportional to 287,531.88, 430,641.72 and 253,895.82 is: 380,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,531.88 : 430,641.72 = 253,895.82 : x
  2. Step 2: Convert to fraction form
    287,531.88/430,641.72 = 253,895.82/x
  3. Step 3: Cross multiply
    287,531.88x = 430,641.72 × 253,895.82
  4. Step 4: Simplify right side
    287,531.88x = 109,338,132,625.61
  5. Step 5: Solve for x
    x = 109,338,132,625.61/287,531.88
  6. Step 6: Final answer
    x = 380,264.38

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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.