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Finding the Fourth Proportional to 401,281.28, 602,119.14 and 161,385.60

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Solution

The fourth proportional to 401,281.28, 602,119.14 and 161,385.60 is: 242,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,281.28 : 602,119.14 = 161,385.60 : x
  2. Step 2: Convert to fraction form
    401,281.28/602,119.14 = 161,385.60/x
  3. Step 3: Cross multiply
    401,281.28x = 602,119.14 × 161,385.60
  4. Step 4: Simplify right side
    401,281.28x = 97,173,358,680.38
  5. Step 5: Solve for x
    x = 97,173,358,680.38/401,281.28
  6. Step 6: Final answer
    x = 242,157.72

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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.