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Finding the Fourth Proportional to 251,707.20, 377,560.80 and 242,030.40

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Solution

The fourth proportional to 251,707.20, 377,560.80 and 242,030.40 is: 363,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,707.20 : 377,560.80 = 242,030.40 : x
  2. Step 2: Convert to fraction form
    251,707.20/377,560.80 = 242,030.40/x
  3. Step 3: Cross multiply
    251,707.20x = 377,560.80 × 242,030.40
  4. Step 4: Simplify right side
    251,707.20x = 91,381,191,448.32
  5. Step 5: Solve for x
    x = 91,381,191,448.32/251,707.20
  6. Step 6: Final answer
    x = 363,045.60

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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.