Home / 356,985.80-492,638.40-195,836.72

Finding the Fourth Proportional to 356,985.80, 492,638.40 and 195,836.72

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Solution

The fourth proportional to 356,985.80, 492,638.40 and 195,836.72 is: 270,253.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,985.80 : 492,638.40 = 195,836.72 : x
  2. Step 2: Convert to fraction form
    356,985.80/492,638.40 = 195,836.72/x
  3. Step 3: Cross multiply
    356,985.80x = 492,638.40 × 195,836.72
  4. Step 4: Simplify right side
    356,985.80x = 96,476,688,402.05
  5. Step 5: Solve for x
    x = 96,476,688,402.05/356,985.80
  6. Step 6: Final answer
    x = 270,253.57

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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.