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Finding the Fourth Proportional to 434,565.42, 599,718.74 and 243,578.81

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Solution

The fourth proportional to 434,565.42, 599,718.74 and 243,578.81 is: 336,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,565.42 : 599,718.74 = 243,578.81 : x
  2. Step 2: Convert to fraction form
    434,565.42/599,718.74 = 243,578.81/x
  3. Step 3: Cross multiply
    434,565.42x = 599,718.74 × 243,578.81
  4. Step 4: Simplify right side
    434,565.42x = 146,078,777,305.30
  5. Step 5: Solve for x
    x = 146,078,777,305.30/434,565.42
  6. Step 6: Final answer
    x = 336,149.10

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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.