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Finding the Fourth Proportional to 239,243.60, 358,865.40 and 168,384.80

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Solution

The fourth proportional to 239,243.60, 358,865.40 and 168,384.80 is: 252,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,243.60 : 358,865.40 = 168,384.80 : x
  2. Step 2: Convert to fraction form
    239,243.60/358,865.40 = 168,384.80/x
  3. Step 3: Cross multiply
    239,243.60x = 358,865.40 × 168,384.80
  4. Step 4: Simplify right side
    239,243.60x = 60,427,478,605.92
  5. Step 5: Solve for x
    x = 60,427,478,605.92/239,243.60
  6. Step 6: Final answer
    x = 252,577.20

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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.