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Finding the Fourth Proportional to 304,812.40, 457,477.80 and 136,591.60

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Solution

The fourth proportional to 304,812.40, 457,477.80 and 136,591.60 is: 205,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,812.40 : 457,477.80 = 136,591.60 : x
  2. Step 2: Convert to fraction form
    304,812.40/457,477.80 = 136,591.60/x
  3. Step 3: Cross multiply
    304,812.40x = 457,477.80 × 136,591.60
  4. Step 4: Simplify right side
    304,812.40x = 62,487,624,666.48
  5. Step 5: Solve for x
    x = 62,487,624,666.48/304,812.40
  6. Step 6: Final answer
    x = 205,003.55

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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.