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Finding the Fourth Proportional to 219,466.40, 329,199.60 and 207,802.40

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Solution

The fourth proportional to 219,466.40, 329,199.60 and 207,802.40 is: 311,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,466.40 : 329,199.60 = 207,802.40 : x
  2. Step 2: Convert to fraction form
    219,466.40/329,199.60 = 207,802.40/x
  3. Step 3: Cross multiply
    219,466.40x = 329,199.60 × 207,802.40
  4. Step 4: Simplify right side
    219,466.40x = 68,408,466,959.04
  5. Step 5: Solve for x
    x = 68,408,466,959.04/219,466.40
  6. Step 6: Final answer
    x = 311,703.60

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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.