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Finding the Fourth Proportional to 169,367.90, 253,971.36 and 98,312.45

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Solution

The fourth proportional to 169,367.90, 253,971.36 and 98,312.45 is: 147,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,367.90 : 253,971.36 = 98,312.45 : x
  2. Step 2: Convert to fraction form
    169,367.90/253,971.36 = 98,312.45/x
  3. Step 3: Cross multiply
    169,367.90x = 253,971.36 × 98,312.45
  4. Step 4: Simplify right side
    169,367.90x = 24,968,545,361.58
  5. Step 5: Solve for x
    x = 24,968,545,361.58/169,367.90
  6. Step 6: Final answer
    x = 147,421.95

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1.5x scale

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.