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Finding the Fourth Proportional to 490,260.60, 735,390.90 and 174,603.60

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Solution

The fourth proportional to 490,260.60, 735,390.90 and 174,603.60 is: 261,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,260.60 : 735,390.90 = 174,603.60 : x
  2. Step 2: Convert to fraction form
    490,260.60/735,390.90 = 174,603.60/x
  3. Step 3: Cross multiply
    490,260.60x = 735,390.90 × 174,603.60
  4. Step 4: Simplify right side
    490,260.60x = 128,401,898,547.24
  5. Step 5: Solve for x
    x = 128,401,898,547.24/490,260.60
  6. Step 6: Final answer
    x = 261,905.40

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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.