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Finding the Fourth Proportional to 306,031.60, 459,047.40 and 235,172.80

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Solution

The fourth proportional to 306,031.60, 459,047.40 and 235,172.80 is: 352,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,031.60 : 459,047.40 = 235,172.80 : x
  2. Step 2: Convert to fraction form
    306,031.60/459,047.40 = 235,172.80/x
  3. Step 3: Cross multiply
    306,031.60x = 459,047.40 × 235,172.80
  4. Step 4: Simplify right side
    306,031.60x = 107,955,462,390.72
  5. Step 5: Solve for x
    x = 107,955,462,390.72/306,031.60
  6. Step 6: Final answer
    x = 352,759.20

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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.