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Finding the Fourth Proportional to 355,228.80, 533,145.60 and 145,017.60

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Solution

The fourth proportional to 355,228.80, 533,145.60 and 145,017.60 is: 217,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,228.80 : 533,145.60 = 145,017.60 : x
  2. Step 2: Convert to fraction form
    355,228.80/533,145.60 = 145,017.60/x
  3. Step 3: Cross multiply
    355,228.80x = 533,145.60 × 145,017.60
  4. Step 4: Simplify right side
    355,228.80x = 77,315,495,362.56
  5. Step 5: Solve for x
    x = 77,315,495,362.56/355,228.80
  6. Step 6: Final answer
    x = 217,649.85

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1.5x scale

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.