Home / 389,136.58-583,752.66-133,011.52

Finding the Fourth Proportional to 389,136.58, 583,752.66 and 133,011.52

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Solution

The fourth proportional to 389,136.58, 583,752.66 and 133,011.52 is: 199,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,136.58 : 583,752.66 = 133,011.52 : x
  2. Step 2: Convert to fraction form
    389,136.58/583,752.66 = 133,011.52/x
  3. Step 3: Cross multiply
    389,136.58x = 583,752.66 × 133,011.52
  4. Step 4: Simplify right side
    389,136.58x = 77,645,828,610.64
  5. Step 5: Solve for x
    x = 77,645,828,610.64/389,136.58
  6. Step 6: Final answer
    x = 199,533.62

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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.