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Finding the Fourth Proportional to 235,419.60, 353,129.40 and 151,438.80

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Solution

The fourth proportional to 235,419.60, 353,129.40 and 151,438.80 is: 227,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,419.60 : 353,129.40 = 151,438.80 : x
  2. Step 2: Convert to fraction form
    235,419.60/353,129.40 = 151,438.80/x
  3. Step 3: Cross multiply
    235,419.60x = 353,129.40 × 151,438.80
  4. Step 4: Simplify right side
    235,419.60x = 53,477,492,580.72
  5. Step 5: Solve for x
    x = 53,477,492,580.72/235,419.60
  6. Step 6: Final answer
    x = 227,158.20

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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.