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Finding the Fourth Proportional to 630,645.50, 946,130.22 and 181,401.55

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Solution

The fourth proportional to 630,645.50, 946,130.22 and 181,401.55 is: 272,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,645.50 : 946,130.22 = 181,401.55 : x
  2. Step 2: Convert to fraction form
    630,645.50/946,130.22 = 181,401.55/x
  3. Step 3: Cross multiply
    630,645.50x = 946,130.22 × 181,401.55
  4. Step 4: Simplify right side
    630,645.50x = 171,629,486,044.52
  5. Step 5: Solve for x
    x = 171,629,486,044.52/630,645.50
  6. Step 6: Final answer
    x = 272,148.91

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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.