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Finding the Fourth Proportional to 630,300.99, 945,454.96 and 156,986.38

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Solution

The fourth proportional to 630,300.99, 945,454.96 and 156,986.38 is: 235,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,300.99 : 945,454.96 = 156,986.38 : x
  2. Step 2: Convert to fraction form
    630,300.99/945,454.96 = 156,986.38/x
  3. Step 3: Cross multiply
    630,300.99x = 945,454.96 × 156,986.38
  4. Step 4: Simplify right side
    630,300.99x = 148,423,551,623.45
  5. Step 5: Solve for x
    x = 148,423,551,623.45/630,300.99
  6. Step 6: Final answer
    x = 235,480.44

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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.