Home / 287,776.27-397,381.98-180,530.65

Finding the Fourth Proportional to 287,776.27, 397,381.98 and 180,530.65

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Solution

The fourth proportional to 287,776.27, 397,381.98 and 180,530.65 is: 249,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,776.27 : 397,381.98 = 180,530.65 : x
  2. Step 2: Convert to fraction form
    287,776.27/397,381.98 = 180,530.65/x
  3. Step 3: Cross multiply
    287,776.27x = 397,381.98 × 180,530.65
  4. Step 4: Simplify right side
    287,776.27x = 71,739,627,147.69
  5. Step 5: Solve for x
    x = 71,739,627,147.69/287,776.27
  6. Step 6: Final answer
    x = 249,289.59

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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.