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Finding the Fourth Proportional to 402,914.40, 604,371.60 and 245,450.40

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Solution

The fourth proportional to 402,914.40, 604,371.60 and 245,450.40 is: 368,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,914.40 : 604,371.60 = 245,450.40 : x
  2. Step 2: Convert to fraction form
    402,914.40/604,371.60 = 245,450.40/x
  3. Step 3: Cross multiply
    402,914.40x = 604,371.60 × 245,450.40
  4. Step 4: Simplify right side
    402,914.40x = 148,343,250,968.64
  5. Step 5: Solve for x
    x = 148,343,250,968.64/402,914.40
  6. Step 6: Final answer
    x = 368,175.60

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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.