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Finding the Fourth Proportional to 417,443.64, 626,256.18 and 136,950.36

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Solution

The fourth proportional to 417,443.64, 626,256.18 and 136,950.36 is: 205,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,443.64 : 626,256.18 = 136,950.36 : x
  2. Step 2: Convert to fraction form
    417,443.64/626,256.18 = 136,950.36/x
  3. Step 3: Cross multiply
    417,443.64x = 626,256.18 × 136,950.36
  4. Step 4: Simplify right side
    417,443.64x = 85,766,009,303.22
  5. Step 5: Solve for x
    x = 85,766,009,303.22/417,443.64
  6. Step 6: Final answer
    x = 205,455.30

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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.