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Finding the Fourth Proportional to 518,195.18, 715,160.35 and 303,322.22

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Solution

The fourth proportional to 518,195.18, 715,160.35 and 303,322.22 is: 418,614.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,195.18 : 715,160.35 = 303,322.22 : x
  2. Step 2: Convert to fraction form
    518,195.18/715,160.35 = 303,322.22/x
  3. Step 3: Cross multiply
    518,195.18x = 715,160.35 × 303,322.22
  4. Step 4: Simplify right side
    518,195.18x = 216,924,025,017.98
  5. Step 5: Solve for x
    x = 216,924,025,017.98/518,195.18
  6. Step 6: Final answer
    x = 418,614.52

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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.