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Finding the Fourth Proportional to 288,288.77, 397,619.57 and 248,069.93

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Solution

The fourth proportional to 288,288.77, 397,619.57 and 248,069.93 is: 342,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,288.77 : 397,619.57 = 248,069.93 : x
  2. Step 2: Convert to fraction form
    288,288.77/397,619.57 = 248,069.93/x
  3. Step 3: Cross multiply
    288,288.77x = 397,619.57 × 248,069.93
  4. Step 4: Simplify right side
    288,288.77x = 98,637,457,528.61
  5. Step 5: Solve for x
    x = 98,637,457,528.61/288,288.77
  6. Step 6: Final answer
    x = 342,148.12

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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.