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Finding the Fourth Proportional to 201,565.60, 302,445.60 and 142,273.60

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Solution

The fourth proportional to 201,565.60, 302,445.60 and 142,273.60 is: 213,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,565.60 : 302,445.60 = 142,273.60 : x
  2. Step 2: Convert to fraction form
    201,565.60/302,445.60 = 142,273.60/x
  3. Step 3: Cross multiply
    201,565.60x = 302,445.60 × 142,273.60
  4. Step 4: Simplify right side
    201,565.60x = 43,030,024,316.16
  5. Step 5: Solve for x
    x = 43,030,024,316.16/201,565.60
  6. Step 6: Final answer
    x = 213,479.01

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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.