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Finding the Fourth Proportional to 356,820.80, 492,419.46 and 195,666.23

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Solution

The fourth proportional to 356,820.80, 492,419.46 and 195,666.23 is: 270,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,820.80 : 492,419.46 = 195,666.23 : x
  2. Step 2: Convert to fraction form
    356,820.80/492,419.46 = 195,666.23/x
  3. Step 3: Cross multiply
    356,820.80x = 492,419.46 × 195,666.23
  4. Step 4: Simplify right side
    356,820.80x = 96,349,861,281.63
  5. Step 5: Solve for x
    x = 96,349,861,281.63/356,820.80
  6. Step 6: Final answer
    x = 270,023.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.