Home / 289,733.11-434,724.53-156,707.01

Finding the Fourth Proportional to 289,733.11, 434,724.53 and 156,707.01

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Solution

The fourth proportional to 289,733.11, 434,724.53 and 156,707.01 is: 235,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,733.11 : 434,724.53 = 156,707.01 : x
  2. Step 2: Convert to fraction form
    289,733.11/434,724.53 = 156,707.01/x
  3. Step 3: Cross multiply
    289,733.11x = 434,724.53 × 156,707.01
  4. Step 4: Simplify right side
    289,733.11x = 68,124,380,486.42
  5. Step 5: Solve for x
    x = 68,124,380,486.42/289,733.11
  6. Step 6: Final answer
    x = 235,128.05

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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.