Home / 355,569.79-533,355.20-145,207.72

Finding the Fourth Proportional to 355,569.79, 533,355.20 and 145,207.72

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Solution

The fourth proportional to 355,569.79, 533,355.20 and 145,207.72 is: 217,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,569.79 : 533,355.20 = 145,207.72 : x
  2. Step 2: Convert to fraction form
    355,569.79/533,355.20 = 145,207.72/x
  3. Step 3: Cross multiply
    355,569.79x = 533,355.20 × 145,207.72
  4. Step 4: Simplify right side
    355,569.79x = 77,447,292,542.14
  5. Step 5: Solve for x
    x = 77,447,292,542.14/355,569.79
  6. Step 6: Final answer
    x = 217,811.79

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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.