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Finding the Fourth Proportional to 620,155.38, 930,066.50 and 170,769.26

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Solution

The fourth proportional to 620,155.38, 930,066.50 and 170,769.26 is: 256,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,155.38 : 930,066.50 = 170,769.26 : x
  2. Step 2: Convert to fraction form
    620,155.38/930,066.50 = 170,769.26/x
  3. Step 3: Cross multiply
    620,155.38x = 930,066.50 × 170,769.26
  4. Step 4: Simplify right side
    620,155.38x = 158,826,767,955.79
  5. Step 5: Solve for x
    x = 158,826,767,955.79/620,155.38
  6. Step 6: Final answer
    x = 256,108.02

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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.