Home / 288,109.37-397,580.50-159,045.07

Finding the Fourth Proportional to 288,109.37, 397,580.50 and 159,045.07

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Solution

The fourth proportional to 288,109.37, 397,580.50 and 159,045.07 is: 219,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,109.37 : 397,580.50 = 159,045.07 : x
  2. Step 2: Convert to fraction form
    288,109.37/397,580.50 = 159,045.07/x
  3. Step 3: Cross multiply
    288,109.37x = 397,580.50 × 159,045.07
  4. Step 4: Simplify right side
    288,109.37x = 63,233,217,061.57
  5. Step 5: Solve for x
    x = 63,233,217,061.57/288,109.37
  6. Step 6: Final answer
    x = 219,476.44

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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.