Home / 297,288.16-446,000.36-128,836.78

Finding the Fourth Proportional to 297,288.16, 446,000.36 and 128,836.78

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Solution

The fourth proportional to 297,288.16, 446,000.36 and 128,836.78 is: 193,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,288.16 : 446,000.36 = 128,836.78 : x
  2. Step 2: Convert to fraction form
    297,288.16/446,000.36 = 128,836.78/x
  3. Step 3: Cross multiply
    297,288.16x = 446,000.36 × 128,836.78
  4. Step 4: Simplify right side
    297,288.16x = 57,461,248,502.06
  5. Step 5: Solve for x
    x = 57,461,248,502.06/297,288.16
  6. Step 6: Final answer
    x = 193,284.69

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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.