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Finding the Fourth Proportional to 371,549.66, 512,830.31 and 210,499.58

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Solution

The fourth proportional to 371,549.66, 512,830.31 and 210,499.58 is: 290,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,549.66 : 512,830.31 = 210,499.58 : x
  2. Step 2: Convert to fraction form
    371,549.66/512,830.31 = 210,499.58/x
  3. Step 3: Cross multiply
    371,549.66x = 512,830.31 × 210,499.58
  4. Step 4: Simplify right side
    371,549.66x = 107,950,565,095.85
  5. Step 5: Solve for x
    x = 107,950,565,095.85/371,549.66
  6. Step 6: Final answer
    x = 290,541.42

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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.