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Finding the Fourth Proportional to 219,302.60, 329,148.30 and 187,809.80

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Solution

The fourth proportional to 219,302.60, 329,148.30 and 187,809.80 is: 281,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,302.60 : 329,148.30 = 187,809.80 : x
  2. Step 2: Convert to fraction form
    219,302.60/329,148.30 = 187,809.80/x
  3. Step 3: Cross multiply
    219,302.60x = 329,148.30 × 187,809.80
  4. Step 4: Simplify right side
    219,302.60x = 61,817,276,393.34
  5. Step 5: Solve for x
    x = 61,817,276,393.34/219,302.60
  6. Step 6: Final answer
    x = 281,881.18

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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.