Home / 303,428.40-455,434.20-153,837.60

Finding the Fourth Proportional to 303,428.40, 455,434.20 and 153,837.60

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Solution

The fourth proportional to 303,428.40, 455,434.20 and 153,837.60 is: 230,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,428.40 : 455,434.20 = 153,837.60 : x
  2. Step 2: Convert to fraction form
    303,428.40/455,434.20 = 153,837.60/x
  3. Step 3: Cross multiply
    303,428.40x = 455,434.20 × 153,837.60
  4. Step 4: Simplify right side
    303,428.40x = 70,062,904,285.92
  5. Step 5: Solve for x
    x = 70,062,904,285.92/303,428.40
  6. Step 6: Final answer
    x = 230,904.24

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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.