Home / 289,343.52-434,012.04-102,311.28

Finding the Fourth Proportional to 289,343.52, 434,012.04 and 102,311.28

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Solution

The fourth proportional to 289,343.52, 434,012.04 and 102,311.28 is: 153,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,343.52 : 434,012.04 = 102,311.28 : x
  2. Step 2: Convert to fraction form
    289,343.52/434,012.04 = 102,311.28/x
  3. Step 3: Cross multiply
    289,343.52x = 434,012.04 × 102,311.28
  4. Step 4: Simplify right side
    289,343.52x = 44,404,327,347.81
  5. Step 5: Solve for x
    x = 44,404,327,347.81/289,343.52
  6. Step 6: Final answer
    x = 153,465.77

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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.