Home / 312,621.46-431,416.98-169,382.07

Finding the Fourth Proportional to 312,621.46, 431,416.98 and 169,382.07

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Solution

The fourth proportional to 312,621.46, 431,416.98 and 169,382.07 is: 233,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,621.46 : 431,416.98 = 169,382.07 : x
  2. Step 2: Convert to fraction form
    312,621.46/431,416.98 = 169,382.07/x
  3. Step 3: Cross multiply
    312,621.46x = 431,416.98 × 169,382.07
  4. Step 4: Simplify right side
    312,621.46x = 73,074,301,105.55
  5. Step 5: Solve for x
    x = 73,074,301,105.55/312,621.46
  6. Step 6: Final answer
    x = 233,746.91

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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.