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Finding the Fourth Proportional to 196,281.40, 294,422.10 and 156,915.40

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Solution

The fourth proportional to 196,281.40, 294,422.10 and 156,915.40 is: 235,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,281.40 : 294,422.10 = 156,915.40 : x
  2. Step 2: Convert to fraction form
    196,281.40/294,422.10 = 156,915.40/x
  3. Step 3: Cross multiply
    196,281.40x = 294,422.10 × 156,915.40
  4. Step 4: Simplify right side
    196,281.40x = 46,199,361,590.34
  5. Step 5: Solve for x
    x = 46,199,361,590.34/196,281.40
  6. Step 6: Final answer
    x = 235,373.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.