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Finding the Fourth Proportional to 404,821.80, 607,232.70 and 155,509.80

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Solution

The fourth proportional to 404,821.80, 607,232.70 and 155,509.80 is: 233,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,821.80 : 607,232.70 = 155,509.80 : x
  2. Step 2: Convert to fraction form
    404,821.80/607,232.70 = 155,509.80/x
  3. Step 3: Cross multiply
    404,821.80x = 607,232.70 × 155,509.80
  4. Step 4: Simplify right side
    404,821.80x = 94,430,635,730.46
  5. Step 5: Solve for x
    x = 94,430,635,730.46/404,821.80
  6. Step 6: Final answer
    x = 233,264.70

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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.