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Finding the Fourth Proportional to 328,767.64, 493,132.96 and 88,878

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Solution

The fourth proportional to 328,767.64, 493,132.96 and 88,878 is: 133,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,767.64 : 493,132.96 = 88,878 : x
  2. Step 2: Convert to fraction form
    328,767.64/493,132.96 = 88,878/x
  3. Step 3: Cross multiply
    328,767.64x = 493,132.96 × 88,878
  4. Step 4: Simplify right side
    328,767.64x = 43,828,671,218.88
  5. Step 5: Solve for x
    x = 43,828,671,218.88/328,767.64
  6. Step 6: Final answer
    x = 133,312.00

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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.