Home / 355,720.31-533,581.12-89,479.01

Finding the Fourth Proportional to 355,720.31, 533,581.12 and 89,479.01

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Solution

The fourth proportional to 355,720.31, 533,581.12 and 89,479.01 is: 134,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,720.31 : 533,581.12 = 89,479.01 : x
  2. Step 2: Convert to fraction form
    355,720.31/533,581.12 = 89,479.01/x
  3. Step 3: Cross multiply
    355,720.31x = 533,581.12 × 89,479.01
  4. Step 4: Simplify right side
    355,720.31x = 47,744,311,818.09
  5. Step 5: Solve for x
    x = 47,744,311,818.09/355,720.31
  6. Step 6: Final answer
    x = 134,218.68

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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.