Home / 287,977.19-432,048.69-88,326.86

Finding the Fourth Proportional to 287,977.19, 432,048.69 and 88,326.86

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Solution

The fourth proportional to 287,977.19, 432,048.69 and 88,326.86 is: 132,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,977.19 : 432,048.69 = 88,326.86 : x
  2. Step 2: Convert to fraction form
    287,977.19/432,048.69 = 88,326.86/x
  3. Step 3: Cross multiply
    287,977.19x = 432,048.69 × 88,326.86
  4. Step 4: Simplify right side
    287,977.19x = 38,161,501,994.57
  5. Step 5: Solve for x
    x = 38,161,501,994.57/287,977.19
  6. Step 6: Final answer
    x = 132,515.71

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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.