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Finding the Fourth Proportional to 307,276.60, 460,914.90 and 286,281.40

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Solution

The fourth proportional to 307,276.60, 460,914.90 and 286,281.40 is: 429,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,276.60 : 460,914.90 = 286,281.40 : x
  2. Step 2: Convert to fraction form
    307,276.60/460,914.90 = 286,281.40/x
  3. Step 3: Cross multiply
    307,276.60x = 460,914.90 × 286,281.40
  4. Step 4: Simplify right side
    307,276.60x = 131,951,362,852.86
  5. Step 5: Solve for x
    x = 131,951,362,852.86/307,276.60
  6. Step 6: Final answer
    x = 429,422.10

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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.