Home / 377,861.16-521,442.10-208,111.08

Finding the Fourth Proportional to 377,861.16, 521,442.10 and 208,111.08

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Solution

The fourth proportional to 377,861.16, 521,442.10 and 208,111.08 is: 287,189.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,861.16 : 521,442.10 = 208,111.08 : x
  2. Step 2: Convert to fraction form
    377,861.16/521,442.10 = 208,111.08/x
  3. Step 3: Cross multiply
    377,861.16x = 521,442.10 × 208,111.08
  4. Step 4: Simplify right side
    377,861.16x = 108,517,878,588.47
  5. Step 5: Solve for x
    x = 108,517,878,588.47/377,861.16
  6. Step 6: Final answer
    x = 287,189.82

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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.