Home / 417,746.40-626,619.60-102,199.20

Finding the Fourth Proportional to 417,746.40, 626,619.60 and 102,199.20

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Solution

The fourth proportional to 417,746.40, 626,619.60 and 102,199.20 is: 153,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,746.40 : 626,619.60 = 102,199.20 : x
  2. Step 2: Convert to fraction form
    417,746.40/626,619.60 = 102,199.20/x
  3. Step 3: Cross multiply
    417,746.40x = 626,619.60 × 102,199.20
  4. Step 4: Simplify right side
    417,746.40x = 64,040,021,824.32
  5. Step 5: Solve for x
    x = 64,040,021,824.32/417,746.40
  6. Step 6: Final answer
    x = 153,298.80

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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.