Home / 286,579.80-429,869.70-198,106.20

Finding the Fourth Proportional to 286,579.80, 429,869.70 and 198,106.20

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Solution

The fourth proportional to 286,579.80, 429,869.70 and 198,106.20 is: 297,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,579.80 : 429,869.70 = 198,106.20 : x
  2. Step 2: Convert to fraction form
    286,579.80/429,869.70 = 198,106.20/x
  3. Step 3: Cross multiply
    286,579.80x = 429,869.70 × 198,106.20
  4. Step 4: Simplify right side
    286,579.80x = 85,159,852,762.14
  5. Step 5: Solve for x
    x = 85,159,852,762.14/286,579.80
  6. Step 6: Final answer
    x = 297,159.30

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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.