Home / 385,384.12-531,785.72-222,064.44

Finding the Fourth Proportional to 385,384.12, 531,785.72 and 222,064.44

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Solution

The fourth proportional to 385,384.12, 531,785.72 and 222,064.44 is: 306,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,384.12 : 531,785.72 = 222,064.44 : x
  2. Step 2: Convert to fraction form
    385,384.12/531,785.72 = 222,064.44/x
  3. Step 3: Cross multiply
    385,384.12x = 531,785.72 × 222,064.44
  4. Step 4: Simplify right side
    385,384.12x = 118,090,698,111.80
  5. Step 5: Solve for x
    x = 118,090,698,111.80/385,384.12
  6. Step 6: Final answer
    x = 306,423.36

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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.