Home / 352,913.60-528,592.80-212,427.20

Finding the Fourth Proportional to 352,913.60, 528,592.80 and 212,427.20

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Solution

The fourth proportional to 352,913.60, 528,592.80 and 212,427.20 is: 318,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,913.60 : 528,592.80 = 212,427.20 : x
  2. Step 2: Convert to fraction form
    352,913.60/528,592.80 = 212,427.20/x
  3. Step 3: Cross multiply
    352,913.60x = 528,592.80 × 212,427.20
  4. Step 4: Simplify right side
    352,913.60x = 112,287,488,444.16
  5. Step 5: Solve for x
    x = 112,287,488,444.16/352,913.60
  6. Step 6: Final answer
    x = 318,172.74

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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.