Home / 286,439.04-429,554.88-136,673.28

Finding the Fourth Proportional to 286,439.04, 429,554.88 and 136,673.28

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Solution

The fourth proportional to 286,439.04, 429,554.88 and 136,673.28 is: 204,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,439.04 : 429,554.88 = 136,673.28 : x
  2. Step 2: Convert to fraction form
    286,439.04/429,554.88 = 136,673.28/x
  3. Step 3: Cross multiply
    286,439.04x = 429,554.88 × 136,673.28
  4. Step 4: Simplify right side
    286,439.04x = 58,708,674,389.61
  5. Step 5: Solve for x
    x = 58,708,674,389.61/286,439.04
  6. Step 6: Final answer
    x = 204,960.45

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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.