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Finding the Fourth Proportional to 245,005.82, 367,430.93 and 78,754.94

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Solution

The fourth proportional to 245,005.82, 367,430.93 and 78,754.94 is: 118,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,005.82 : 367,430.93 = 78,754.94 : x
  2. Step 2: Convert to fraction form
    245,005.82/367,430.93 = 78,754.94/x
  3. Step 3: Cross multiply
    245,005.82x = 367,430.93 × 78,754.94
  4. Step 4: Simplify right side
    245,005.82x = 28,937,000,846.29
  5. Step 5: Solve for x
    x = 28,937,000,846.29/245,005.82
  6. Step 6: Final answer
    x = 118,107.40

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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.