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Finding the Fourth Proportional to 209,467.60, 314,282.04 and 97,205.20

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Solution

The fourth proportional to 209,467.60, 314,282.04 and 97,205.20 is: 145,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,467.60 : 314,282.04 = 97,205.20 : x
  2. Step 2: Convert to fraction form
    209,467.60/314,282.04 = 97,205.20/x
  3. Step 3: Cross multiply
    209,467.60x = 314,282.04 × 97,205.20
  4. Step 4: Simplify right side
    209,467.60x = 30,549,848,554.61
  5. Step 5: Solve for x
    x = 30,549,848,554.61/209,467.60
  6. Step 6: Final answer
    x = 145,845.22

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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.