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Finding the Fourth Proportional to 334,130.70, 501,256.80 and 109,428.60

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Solution

The fourth proportional to 334,130.70, 501,256.80 and 109,428.60 is: 164,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,130.70 : 501,256.80 = 109,428.60 : x
  2. Step 2: Convert to fraction form
    334,130.70/501,256.80 = 109,428.60/x
  3. Step 3: Cross multiply
    334,130.70x = 501,256.80 × 109,428.60
  4. Step 4: Simplify right side
    334,130.70x = 54,851,829,864.48
  5. Step 5: Solve for x
    x = 54,851,829,864.48/334,130.70
  6. Step 6: Final answer
    x = 164,162.80

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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.