Home / 288,272.12-397,981.48-191,607

Finding the Fourth Proportional to 288,272.12, 397,981.48 and 191,607

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Solution

The fourth proportional to 288,272.12, 397,981.48 and 191,607 is: 264,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,272.12 : 397,981.48 = 191,607 : x
  2. Step 2: Convert to fraction form
    288,272.12/397,981.48 = 191,607/x
  3. Step 3: Cross multiply
    288,272.12x = 397,981.48 × 191,607
  4. Step 4: Simplify right side
    288,272.12x = 76,256,037,438.36
  5. Step 5: Solve for x
    x = 76,256,037,438.36/288,272.12
  6. Step 6: Final answer
    x = 264,527.97

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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.