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Finding the Fourth Proportional to 384,907.80, 577,374.90 and 118,666.20

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Solution

The fourth proportional to 384,907.80, 577,374.90 and 118,666.20 is: 178,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,907.80 : 577,374.90 = 118,666.20 : x
  2. Step 2: Convert to fraction form
    384,907.80/577,374.90 = 118,666.20/x
  3. Step 3: Cross multiply
    384,907.80x = 577,374.90 × 118,666.20
  4. Step 4: Simplify right side
    384,907.80x = 68,514,885,358.38
  5. Step 5: Solve for x
    x = 68,514,885,358.38/384,907.80
  6. Step 6: Final answer
    x = 178,003.37

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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.