Home / 289,516.13-434,253.27-89,831.42

Finding the Fourth Proportional to 289,516.13, 434,253.27 and 89,831.42

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Solution

The fourth proportional to 289,516.13, 434,253.27 and 89,831.42 is: 134,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,516.13 : 434,253.27 = 89,831.42 : x
  2. Step 2: Convert to fraction form
    289,516.13/434,253.27 = 89,831.42/x
  3. Step 3: Cross multiply
    289,516.13x = 434,253.27 × 89,831.42
  4. Step 4: Simplify right side
    289,516.13x = 39,009,587,883.74
  5. Step 5: Solve for x
    x = 39,009,587,883.74/289,516.13
  6. Step 6: Final answer
    x = 134,740.64

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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.