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Finding the Fourth Proportional to 292,571.60, 403,746.50 and 158,435.60

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Solution

The fourth proportional to 292,571.60, 403,746.50 and 158,435.60 is: 218,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,571.60 : 403,746.50 = 158,435.60 : x
  2. Step 2: Convert to fraction form
    292,571.60/403,746.50 = 158,435.60/x
  3. Step 3: Cross multiply
    292,571.60x = 403,746.50 × 158,435.60
  4. Step 4: Simplify right side
    292,571.60x = 63,967,818,975.40
  5. Step 5: Solve for x
    x = 63,967,818,975.40/292,571.60
  6. Step 6: Final answer
    x = 218,639.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.