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Finding the Fourth Proportional to 370,833.40, 556,250.10 and 121,515.40

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Solution

The fourth proportional to 370,833.40, 556,250.10 and 121,515.40 is: 182,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,833.40 : 556,250.10 = 121,515.40 : x
  2. Step 2: Convert to fraction form
    370,833.40/556,250.10 = 121,515.40/x
  3. Step 3: Cross multiply
    370,833.40x = 556,250.10 × 121,515.40
  4. Step 4: Simplify right side
    370,833.40x = 67,592,953,401.54
  5. Step 5: Solve for x
    x = 67,592,953,401.54/370,833.40
  6. Step 6: Final answer
    x = 182,273.10

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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.