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Finding the Fourth Proportional to 608,060.64, 912,109.50 and 208,695.72

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Solution

The fourth proportional to 608,060.64, 912,109.50 and 208,695.72 is: 313,049.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,060.64 : 912,109.50 = 208,695.72 : x
  2. Step 2: Convert to fraction form
    608,060.64/912,109.50 = 208,695.72/x
  3. Step 3: Cross multiply
    608,060.64x = 912,109.50 × 208,695.72
  4. Step 4: Simplify right side
    608,060.64x = 190,353,348,821.34
  5. Step 5: Solve for x
    x = 190,353,348,821.34/608,060.64
  6. Step 6: Final answer
    x = 313,049.94

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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.