Home / 289,108.30-433,703.76-89,445.73

Finding the Fourth Proportional to 289,108.30, 433,703.76 and 89,445.73

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Solution

The fourth proportional to 289,108.30, 433,703.76 and 89,445.73 is: 134,181.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,108.30 : 433,703.76 = 89,445.73 : x
  2. Step 2: Convert to fraction form
    289,108.30/433,703.76 = 89,445.73/x
  3. Step 3: Cross multiply
    289,108.30x = 433,703.76 × 89,445.73
  4. Step 4: Simplify right side
    289,108.30x = 38,792,949,416.94
  5. Step 5: Solve for x
    x = 38,792,949,416.94/289,108.30
  6. Step 6: Final answer
    x = 134,181.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.