Home / 289,416.30-434,124.45-89,735.10

Finding the Fourth Proportional to 289,416.30, 434,124.45 and 89,735.10

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Solution

The fourth proportional to 289,416.30, 434,124.45 and 89,735.10 is: 134,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,416.30 : 434,124.45 = 89,735.10 : x
  2. Step 2: Convert to fraction form
    289,416.30/434,124.45 = 89,735.10/x
  3. Step 3: Cross multiply
    289,416.30x = 434,124.45 × 89,735.10
  4. Step 4: Simplify right side
    289,416.30x = 38,956,200,933.20
  5. Step 5: Solve for x
    x = 38,956,200,933.20/289,416.30
  6. Step 6: Final answer
    x = 134,602.65

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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.