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Finding the Fourth Proportional to 610,660.80, 915,976.80 and 167,428.80

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Solution

The fourth proportional to 610,660.80, 915,976.80 and 167,428.80 is: 251,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,660.80 : 915,976.80 = 167,428.80 : x
  2. Step 2: Convert to fraction form
    610,660.80/915,976.80 = 167,428.80/x
  3. Step 3: Cross multiply
    610,660.80x = 915,976.80 × 167,428.80
  4. Step 4: Simplify right side
    610,660.80x = 153,360,896,451.84
  5. Step 5: Solve for x
    x = 153,360,896,451.84/610,660.80
  6. Step 6: Final answer
    x = 251,139.25

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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.