Home / 288,215.16-397,743.60-180,789.72

Finding the Fourth Proportional to 288,215.16, 397,743.60 and 180,789.72

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Solution

The fourth proportional to 288,215.16, 397,743.60 and 180,789.72 is: 249,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,215.16 : 397,743.60 = 180,789.72 : x
  2. Step 2: Convert to fraction form
    288,215.16/397,743.60 = 180,789.72/x
  3. Step 3: Cross multiply
    288,215.16x = 397,743.60 × 180,789.72
  4. Step 4: Simplify right side
    288,215.16x = 71,907,954,075.79
  5. Step 5: Solve for x
    x = 71,907,954,075.79/288,215.16
  6. Step 6: Final answer
    x = 249,494.00

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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.