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Finding the Fourth Proportional to 218,418.81, 301,510.95 and 146,840.34

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Solution

The fourth proportional to 218,418.81, 301,510.95 and 146,840.34 is: 202,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,418.81 : 301,510.95 = 146,840.34 : x
  2. Step 2: Convert to fraction form
    218,418.81/301,510.95 = 146,840.34/x
  3. Step 3: Cross multiply
    218,418.81x = 301,510.95 × 146,840.34
  4. Step 4: Simplify right side
    218,418.81x = 44,273,970,411.72
  5. Step 5: Solve for x
    x = 44,273,970,411.72/218,418.81
  6. Step 6: Final answer
    x = 202,702.19

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1.5x scale

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.