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Finding the Fourth Proportional to 438,069.30, 657,103.95 and 228,117.30

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Solution

The fourth proportional to 438,069.30, 657,103.95 and 228,117.30 is: 342,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,069.30 : 657,103.95 = 228,117.30 : x
  2. Step 2: Convert to fraction form
    438,069.30/657,103.95 = 228,117.30/x
  3. Step 3: Cross multiply
    438,069.30x = 657,103.95 × 228,117.30
  4. Step 4: Simplify right side
    438,069.30x = 149,896,778,893.34
  5. Step 5: Solve for x
    x = 149,896,778,893.34/438,069.30
  6. Step 6: Final answer
    x = 342,175.95

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Similar ratio
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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.