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Finding the Fourth Proportional to 306,304.64, 459,465.60 and 84,688.64

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Solution

The fourth proportional to 306,304.64, 459,465.60 and 84,688.64 is: 127,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,304.64 : 459,465.60 = 84,688.64 : x
  2. Step 2: Convert to fraction form
    306,304.64/459,465.60 = 84,688.64/x
  3. Step 3: Cross multiply
    306,304.64x = 459,465.60 × 84,688.64
  4. Step 4: Simplify right side
    306,304.64x = 38,911,516,790.78
  5. Step 5: Solve for x
    x = 38,911,516,790.78/306,304.64
  6. Step 6: Final answer
    x = 127,035.35

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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.