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Finding the Fourth Proportional to 318,959.37, 440,162.91 and 175,718.16

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Solution

The fourth proportional to 318,959.37, 440,162.91 and 175,718.16 is: 242,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,959.37 : 440,162.91 = 175,718.16 : x
  2. Step 2: Convert to fraction form
    318,959.37/440,162.91 = 175,718.16/x
  3. Step 3: Cross multiply
    318,959.37x = 440,162.91 × 175,718.16
  4. Step 4: Simplify right side
    318,959.37x = 77,344,616,645.45
  5. Step 5: Solve for x
    x = 77,344,616,645.45/318,959.37
  6. Step 6: Final answer
    x = 242,490.50

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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.