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Finding the Fourth Proportional to 352,548.82, 528,461.25 and 139,230.28

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Solution

The fourth proportional to 352,548.82, 528,461.25 and 139,230.28 is: 208,702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,548.82 : 528,461.25 = 139,230.28 : x
  2. Step 2: Convert to fraction form
    352,548.82/528,461.25 = 139,230.28/x
  3. Step 3: Cross multiply
    352,548.82x = 528,461.25 × 139,230.28
  4. Step 4: Simplify right side
    352,548.82x = 73,577,807,806.65
  5. Step 5: Solve for x
    x = 73,577,807,806.65/352,548.82
  6. Step 6: Final answer
    x = 208,702.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.