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Finding the Fourth Proportional to 456,549.89, 630,035.42 and 255,345.89

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Solution

The fourth proportional to 456,549.89, 630,035.42 and 255,345.89 is: 352,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,549.89 : 630,035.42 = 255,345.89 : x
  2. Step 2: Convert to fraction form
    456,549.89/630,035.42 = 255,345.89/x
  3. Step 3: Cross multiply
    456,549.89x = 630,035.42 × 255,345.89
  4. Step 4: Simplify right side
    456,549.89x = 160,876,950,624.52
  5. Step 5: Solve for x
    x = 160,876,950,624.52/456,549.89
  6. Step 6: Final answer
    x = 352,375.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.