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Finding the Fourth Proportional to 157,058.40, 235,328.40 and 133,730.40

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Solution

The fourth proportional to 157,058.40, 235,328.40 and 133,730.40 is: 200,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,058.40 : 235,328.40 = 133,730.40 : x
  2. Step 2: Convert to fraction form
    157,058.40/235,328.40 = 133,730.40/x
  3. Step 3: Cross multiply
    157,058.40x = 235,328.40 × 133,730.40
  4. Step 4: Simplify right side
    157,058.40x = 31,470,561,063.36
  5. Step 5: Solve for x
    x = 31,470,561,063.36/157,058.40
  6. Step 6: Final answer
    x = 200,374.90

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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.