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Finding the Fourth Proportional to 304,018.40, 454,715.40 and 256,779.20

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Solution

The fourth proportional to 304,018.40, 454,715.40 and 256,779.20 is: 384,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,018.40 : 454,715.40 = 256,779.20 : x
  2. Step 2: Convert to fraction form
    304,018.40/454,715.40 = 256,779.20/x
  3. Step 3: Cross multiply
    304,018.40x = 454,715.40 × 256,779.20
  4. Step 4: Simplify right side
    304,018.40x = 116,761,456,639.68
  5. Step 5: Solve for x
    x = 116,761,456,639.68/304,018.40
  6. Step 6: Final answer
    x = 384,060.49

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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.