Home / 289,110.76-398,966.63-160,041.77

Finding the Fourth Proportional to 289,110.76, 398,966.63 and 160,041.77

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Solution

The fourth proportional to 289,110.76, 398,966.63 and 160,041.77 is: 220,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,110.76 : 398,966.63 = 160,041.77 : x
  2. Step 2: Convert to fraction form
    289,110.76/398,966.63 = 160,041.77/x
  3. Step 3: Cross multiply
    289,110.76x = 398,966.63 × 160,041.77
  4. Step 4: Simplify right side
    289,110.76x = 63,851,324,041.41
  5. Step 5: Solve for x
    x = 63,851,324,041.41/289,110.76
  6. Step 6: Final answer
    x = 220,854.20

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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.