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Finding the Fourth Proportional to 306,032.60, 459,048.90 and 271,915.40

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Solution

The fourth proportional to 306,032.60, 459,048.90 and 271,915.40 is: 407,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,032.60 : 459,048.90 = 271,915.40 : x
  2. Step 2: Convert to fraction form
    306,032.60/459,048.90 = 271,915.40/x
  3. Step 3: Cross multiply
    306,032.60x = 459,048.90 × 271,915.40
  4. Step 4: Simplify right side
    306,032.60x = 124,822,465,263.06
  5. Step 5: Solve for x
    x = 124,822,465,263.06/306,032.60
  6. Step 6: Final answer
    x = 407,873.10

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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.