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Finding the Fourth Proportional to 158,611.60, 238,111.80 and 157,445.20

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Solution

The fourth proportional to 158,611.60, 238,111.80 and 157,445.20 is: 236,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,611.60 : 238,111.80 = 157,445.20 : x
  2. Step 2: Convert to fraction form
    158,611.60/238,111.80 = 157,445.20/x
  3. Step 3: Cross multiply
    158,611.60x = 238,111.80 × 157,445.20
  4. Step 4: Simplify right side
    158,611.60x = 37,489,559,973.36
  5. Step 5: Solve for x
    x = 37,489,559,973.36/158,611.60
  6. Step 6: Final answer
    x = 236,360.77

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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.