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Finding the Fourth Proportional to 219,495.47, 329,226.80 and 79,254.09

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Solution

The fourth proportional to 219,495.47, 329,226.80 and 79,254.09 is: 118,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,495.47 : 329,226.80 = 79,254.09 : x
  2. Step 2: Convert to fraction form
    219,495.47/329,226.80 = 79,254.09/x
  3. Step 3: Cross multiply
    219,495.47x = 329,226.80 × 79,254.09
  4. Step 4: Simplify right side
    219,495.47x = 26,092,570,041.34
  5. Step 5: Solve for x
    x = 26,092,570,041.34/219,495.47
  6. Step 6: Final answer
    x = 118,875.21

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1.5x scale

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.