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Finding the Fourth Proportional to 417,292.80, 626,246.40 and 168,153.60

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Solution

The fourth proportional to 417,292.80, 626,246.40 and 168,153.60 is: 252,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,292.80 : 626,246.40 = 168,153.60 : x
  2. Step 2: Convert to fraction form
    417,292.80/626,246.40 = 168,153.60/x
  3. Step 3: Cross multiply
    417,292.80x = 626,246.40 × 168,153.60
  4. Step 4: Simplify right side
    417,292.80x = 105,305,586,647.04
  5. Step 5: Solve for x
    x = 105,305,586,647.04/417,292.80
  6. Step 6: Final answer
    x = 252,354.19

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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.