Home / 456,135.28-629,465.12-254,931.28

Finding the Fourth Proportional to 456,135.28, 629,465.12 and 254,931.28

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Solution

The fourth proportional to 456,135.28, 629,465.12 and 254,931.28 is: 351,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,135.28 : 629,465.12 = 254,931.28 : x
  2. Step 2: Convert to fraction form
    456,135.28/629,465.12 = 254,931.28/x
  3. Step 3: Cross multiply
    456,135.28x = 629,465.12 × 254,931.28
  4. Step 4: Simplify right side
    456,135.28x = 160,470,348,756.95
  5. Step 5: Solve for x
    x = 160,470,348,756.95/456,135.28
  6. Step 6: Final answer
    x = 351,804.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.