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Finding the Fourth Proportional to 355,589.60, 533,384.40 and 89,358.80

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Solution

The fourth proportional to 355,589.60, 533,384.40 and 89,358.80 is: 134,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,589.60 : 533,384.40 = 89,358.80 : x
  2. Step 2: Convert to fraction form
    355,589.60/533,384.40 = 89,358.80/x
  3. Step 3: Cross multiply
    355,589.60x = 533,384.40 × 89,358.80
  4. Step 4: Simplify right side
    355,589.60x = 47,662,589,922.72
  5. Step 5: Solve for x
    x = 47,662,589,922.72/355,589.60
  6. Step 6: Final answer
    x = 134,038.20

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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.