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Finding the Fourth Proportional to 331,341.40, 497,012.10 and 109,725.40

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Solution

The fourth proportional to 331,341.40, 497,012.10 and 109,725.40 is: 164,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,341.40 : 497,012.10 = 109,725.40 : x
  2. Step 2: Convert to fraction form
    331,341.40/497,012.10 = 109,725.40/x
  3. Step 3: Cross multiply
    331,341.40x = 497,012.10 × 109,725.40
  4. Step 4: Simplify right side
    331,341.40x = 54,534,851,477.34
  5. Step 5: Solve for x
    x = 54,534,851,477.34/331,341.40
  6. Step 6: Final answer
    x = 164,588.10

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1.5x scale

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.