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Finding the Fourth Proportional to 402,955.40, 603,914.70 and 245,016.20

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Solution

The fourth proportional to 402,955.40, 603,914.70 and 245,016.20 is: 367,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,955.40 : 603,914.70 = 245,016.20 : x
  2. Step 2: Convert to fraction form
    402,955.40/603,914.70 = 245,016.20/x
  3. Step 3: Cross multiply
    402,955.40x = 603,914.70 × 245,016.20
  4. Step 4: Simplify right side
    402,955.40x = 147,968,884,918.14
  5. Step 5: Solve for x
    x = 147,968,884,918.14/402,955.40
  6. Step 6: Final answer
    x = 367,209.09

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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.