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Finding the Fourth Proportional to 404,643.76, 607,043.76 and 155,306.32

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Solution

The fourth proportional to 404,643.76, 607,043.76 and 155,306.32 is: 232,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,643.76 : 607,043.76 = 155,306.32 : x
  2. Step 2: Convert to fraction form
    404,643.76/607,043.76 = 155,306.32/x
  3. Step 3: Cross multiply
    404,643.76x = 607,043.76 × 155,306.32
  4. Step 4: Simplify right side
    404,643.76x = 94,277,732,444.56
  5. Step 5: Solve for x
    x = 94,277,732,444.56/404,643.76
  6. Step 6: Final answer
    x = 232,989.46

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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.