Home / 289,086.40-398,929.20-160,030.48

Finding the Fourth Proportional to 289,086.40, 398,929.20 and 160,030.48

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Solution

The fourth proportional to 289,086.40, 398,929.20 and 160,030.48 is: 220,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,086.40 : 398,929.20 = 160,030.48 : x
  2. Step 2: Convert to fraction form
    289,086.40/398,929.20 = 160,030.48/x
  3. Step 3: Cross multiply
    289,086.40x = 398,929.20 × 160,030.48
  4. Step 4: Simplify right side
    289,086.40x = 63,840,831,362.02
  5. Step 5: Solve for x
    x = 63,840,831,362.02/289,086.40
  6. Step 6: Final answer
    x = 220,836.51

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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.