Home / 288,118.34-397,712.26-216,704.58

Finding the Fourth Proportional to 288,118.34, 397,712.26 and 216,704.58

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Solution

The fourth proportional to 288,118.34, 397,712.26 and 216,704.58 is: 299,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,118.34 : 397,712.26 = 216,704.58 : x
  2. Step 2: Convert to fraction form
    288,118.34/397,712.26 = 216,704.58/x
  3. Step 3: Cross multiply
    288,118.34x = 397,712.26 × 216,704.58
  4. Step 4: Simplify right side
    288,118.34x = 86,186,068,264.15
  5. Step 5: Solve for x
    x = 86,186,068,264.15/288,118.34
  6. Step 6: Final answer
    x = 299,134.27

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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.