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Finding the Fourth Proportional to 528,070.80, 792,106.20 and 154,045.20

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Solution

The fourth proportional to 528,070.80, 792,106.20 and 154,045.20 is: 231,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,070.80 : 792,106.20 = 154,045.20 : x
  2. Step 2: Convert to fraction form
    528,070.80/792,106.20 = 154,045.20/x
  3. Step 3: Cross multiply
    528,070.80x = 792,106.20 × 154,045.20
  4. Step 4: Simplify right side
    528,070.80x = 122,020,158,000.24
  5. Step 5: Solve for x
    x = 122,020,158,000.24/528,070.80
  6. Step 6: Final answer
    x = 231,067.80

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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.