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Finding the Fourth Proportional to 426,369.40, 639,216.72 and 160,100.26

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Solution

The fourth proportional to 426,369.40, 639,216.72 and 160,100.26 is: 240,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,369.40 : 639,216.72 = 160,100.26 : x
  2. Step 2: Convert to fraction form
    426,369.40/639,216.72 = 160,100.26/x
  3. Step 3: Cross multiply
    426,369.40x = 639,216.72 × 160,100.26
  4. Step 4: Simplify right side
    426,369.40x = 102,338,763,068.35
  5. Step 5: Solve for x
    x = 102,338,763,068.35/426,369.40
  6. Step 6: Final answer
    x = 240,023.70

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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.