Home / 377,928.57-521,541.35-208,162.70

Finding the Fourth Proportional to 377,928.57, 521,541.35 and 208,162.70

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Solution

The fourth proportional to 377,928.57, 521,541.35 and 208,162.70 is: 287,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,928.57 : 521,541.35 = 208,162.70 : x
  2. Step 2: Convert to fraction form
    377,928.57/521,541.35 = 208,162.70/x
  3. Step 3: Cross multiply
    377,928.57x = 521,541.35 × 208,162.70
  4. Step 4: Simplify right side
    377,928.57x = 108,565,451,929.13
  5. Step 5: Solve for x
    x = 108,565,451,929.13/377,928.57
  6. Step 6: Final answer
    x = 287,264.47

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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.