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Finding the Fourth Proportional to 207,070.80, 310,606.20 and 198,322.80

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Solution

The fourth proportional to 207,070.80, 310,606.20 and 198,322.80 is: 297,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,070.80 : 310,606.20 = 198,322.80 : x
  2. Step 2: Convert to fraction form
    207,070.80/310,606.20 = 198,322.80/x
  3. Step 3: Cross multiply
    207,070.80x = 310,606.20 × 198,322.80
  4. Step 4: Simplify right side
    207,070.80x = 61,600,291,281.36
  5. Step 5: Solve for x
    x = 61,600,291,281.36/207,070.80
  6. Step 6: Final answer
    x = 297,484.20

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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.