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Finding the Fourth Proportional to 375,400.28, 563,155.32 and 109,126.19

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Solution

The fourth proportional to 375,400.28, 563,155.32 and 109,126.19 is: 163,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,400.28 : 563,155.32 = 109,126.19 : x
  2. Step 2: Convert to fraction form
    375,400.28/563,155.32 = 109,126.19/x
  3. Step 3: Cross multiply
    375,400.28x = 563,155.32 × 109,126.19
  4. Step 4: Simplify right side
    375,400.28x = 61,454,995,653.11
  5. Step 5: Solve for x
    x = 61,454,995,653.11/375,400.28
  6. Step 6: Final answer
    x = 163,705.25

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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.