Home / 245,009.18-338,053.53-142,976.42

Finding the Fourth Proportional to 245,009.18, 338,053.53 and 142,976.42

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Solution

The fourth proportional to 245,009.18, 338,053.53 and 142,976.42 is: 197,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,009.18 : 338,053.53 = 142,976.42 : x
  2. Step 2: Convert to fraction form
    245,009.18/338,053.53 = 142,976.42/x
  3. Step 3: Cross multiply
    245,009.18x = 338,053.53 × 142,976.42
  4. Step 4: Simplify right side
    245,009.18x = 48,333,683,487.76
  5. Step 5: Solve for x
    x = 48,333,683,487.76/245,009.18
  6. Step 6: Final answer
    x = 197,272.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.