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Finding the Fourth Proportional to 307,801.60, 461,637.60 and 130,314.40

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Solution

The fourth proportional to 307,801.60, 461,637.60 and 130,314.40 is: 195,444.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,801.60 : 461,637.60 = 130,314.40 : x
  2. Step 2: Convert to fraction form
    307,801.60/461,637.60 = 130,314.40/x
  3. Step 3: Cross multiply
    307,801.60x = 461,637.60 × 130,314.40
  4. Step 4: Simplify right side
    307,801.60x = 60,158,026,861.44
  5. Step 5: Solve for x
    x = 60,158,026,861.44/307,801.60
  6. Step 6: Final answer
    x = 195,444.17

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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.