Home / 286,293.04-429,384.15-86,566.61

Finding the Fourth Proportional to 286,293.04, 429,384.15 and 86,566.61

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Solution

The fourth proportional to 286,293.04, 429,384.15 and 86,566.61 is: 129,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,293.04 : 429,384.15 = 86,566.61 : x
  2. Step 2: Convert to fraction form
    286,293.04/429,384.15 = 86,566.61/x
  3. Step 3: Cross multiply
    286,293.04x = 429,384.15 × 86,566.61
  4. Step 4: Simplify right side
    286,293.04x = 37,170,330,253.23
  5. Step 5: Solve for x
    x = 37,170,330,253.23/286,293.04
  6. Step 6: Final answer
    x = 129,833.16

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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.