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Finding the Fourth Proportional to 376,431.15, 519,246.72 and 223,368.47

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Solution

The fourth proportional to 376,431.15, 519,246.72 and 223,368.47 is: 308,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,431.15 : 519,246.72 = 223,368.47 : x
  2. Step 2: Convert to fraction form
    376,431.15/519,246.72 = 223,368.47/x
  3. Step 3: Cross multiply
    376,431.15x = 519,246.72 × 223,368.47
  4. Step 4: Simplify right side
    376,431.15x = 115,983,342,802.69
  5. Step 5: Solve for x
    x = 115,983,342,802.69/376,431.15
  6. Step 6: Final answer
    x = 308,113.03

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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.