Home / 358,739.28-538,106.04-134,156.40

Finding the Fourth Proportional to 358,739.28, 538,106.04 and 134,156.40

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Solution

The fourth proportional to 358,739.28, 538,106.04 and 134,156.40 is: 201,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,739.28 : 538,106.04 = 134,156.40 : x
  2. Step 2: Convert to fraction form
    358,739.28/538,106.04 = 134,156.40/x
  3. Step 3: Cross multiply
    358,739.28x = 538,106.04 × 134,156.40
  4. Step 4: Simplify right side
    358,739.28x = 72,190,369,144.66
  5. Step 5: Solve for x
    x = 72,190,369,144.66/358,739.28
  6. Step 6: Final answer
    x = 201,233.52

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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.