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Finding the Fourth Proportional to 630,094.80, 945,140.22 and 156,780.12

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Solution

The fourth proportional to 630,094.80, 945,140.22 and 156,780.12 is: 235,169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,094.80 : 945,140.22 = 156,780.12 : x
  2. Step 2: Convert to fraction form
    630,094.80/945,140.22 = 156,780.12/x
  3. Step 3: Cross multiply
    630,094.80x = 945,140.22 × 156,780.12
  4. Step 4: Simplify right side
    630,094.80x = 148,179,197,108.43
  5. Step 5: Solve for x
    x = 148,179,197,108.43/630,094.80
  6. Step 6: Final answer
    x = 235,169.69

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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.