Home / 353,237.16-487,295.88-209,895.72

Finding the Fourth Proportional to 353,237.16, 487,295.88 and 209,895.72

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Solution

The fourth proportional to 353,237.16, 487,295.88 and 209,895.72 is: 289,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,237.16 : 487,295.88 = 209,895.72 : x
  2. Step 2: Convert to fraction form
    353,237.16/487,295.88 = 209,895.72/x
  3. Step 3: Cross multiply
    353,237.16x = 487,295.88 × 209,895.72
  4. Step 4: Simplify right side
    353,237.16x = 102,281,319,585.63
  5. Step 5: Solve for x
    x = 102,281,319,585.63/353,237.16
  6. Step 6: Final answer
    x = 289,554.25

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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.