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Finding the Fourth Proportional to 402,945.10, 604,697.10 and 303,315.10

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Solution

The fourth proportional to 402,945.10, 604,697.10 and 303,315.10 is: 455,183.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,945.10 : 604,697.10 = 303,315.10 : x
  2. Step 2: Convert to fraction form
    402,945.10/604,697.10 = 303,315.10/x
  3. Step 3: Cross multiply
    402,945.10x = 604,697.10 × 303,315.10
  4. Step 4: Simplify right side
    402,945.10x = 183,413,761,356.21
  5. Step 5: Solve for x
    x = 183,413,761,356.21/402,945.10
  6. Step 6: Final answer
    x = 455,183.00

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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.