Home / 245,316.18-338,539.50-137,879.94

Finding the Fourth Proportional to 245,316.18, 338,539.50 and 137,879.94

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Solution

The fourth proportional to 245,316.18, 338,539.50 and 137,879.94 is: 190,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,316.18 : 338,539.50 = 137,879.94 : x
  2. Step 2: Convert to fraction form
    245,316.18/338,539.50 = 137,879.94/x
  3. Step 3: Cross multiply
    245,316.18x = 338,539.50 × 137,879.94
  4. Step 4: Simplify right side
    245,316.18x = 46,677,805,947.63
  5. Step 5: Solve for x
    x = 46,677,805,947.63/245,316.18
  6. Step 6: Final answer
    x = 190,276.10

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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.