Home / 260,036.49-390,054.74-91,517.13

Finding the Fourth Proportional to 260,036.49, 390,054.74 and 91,517.13

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Solution

The fourth proportional to 260,036.49, 390,054.74 and 91,517.13 is: 137,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,036.49 : 390,054.74 = 91,517.13 : x
  2. Step 2: Convert to fraction form
    260,036.49/390,054.74 = 91,517.13/x
  3. Step 3: Cross multiply
    260,036.49x = 390,054.74 × 91,517.13
  4. Step 4: Simplify right side
    260,036.49x = 35,696,689,890.11
  5. Step 5: Solve for x
    x = 35,696,689,890.11/260,036.49
  6. Step 6: Final answer
    x = 137,275.70

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1.5x scale

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.