Home / 434,228.72-651,384.36-134,712.56

Finding the Fourth Proportional to 434,228.72, 651,384.36 and 134,712.56

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Solution

The fourth proportional to 434,228.72, 651,384.36 and 134,712.56 is: 202,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,228.72 : 651,384.36 = 134,712.56 : x
  2. Step 2: Convert to fraction form
    434,228.72/651,384.36 = 134,712.56/x
  3. Step 3: Cross multiply
    434,228.72x = 651,384.36 × 134,712.56
  4. Step 4: Simplify right side
    434,228.72x = 87,749,654,679.56
  5. Step 5: Solve for x
    x = 87,749,654,679.56/434,228.72
  6. Step 6: Final answer
    x = 202,081.65

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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.