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Finding the Fourth Proportional to 401,810.88, 602,913 and 161,914.80

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Solution

The fourth proportional to 401,810.88, 602,913 and 161,914.80 is: 242,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,810.88 : 602,913 = 161,914.80 : x
  2. Step 2: Convert to fraction form
    401,810.88/602,913 = 161,914.80/x
  3. Step 3: Cross multiply
    401,810.88x = 602,913 × 161,914.80
  4. Step 4: Simplify right side
    401,810.88x = 97,620,537,812.40
  5. Step 5: Solve for x
    x = 97,620,537,812.40/401,810.88
  6. Step 6: Final answer
    x = 242,951.45

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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.