Home / 260,141.51-390,238.23-70,604.93

Finding the Fourth Proportional to 260,141.51, 390,238.23 and 70,604.93

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Solution

The fourth proportional to 260,141.51, 390,238.23 and 70,604.93 is: 105,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,141.51 : 390,238.23 = 70,604.93 : x
  2. Step 2: Convert to fraction form
    260,141.51/390,238.23 = 70,604.93/x
  3. Step 3: Cross multiply
    260,141.51x = 390,238.23 × 70,604.93
  4. Step 4: Simplify right side
    260,141.51x = 27,552,740,961.28
  5. Step 5: Solve for x
    x = 27,552,740,961.28/260,141.51
  6. Step 6: Final answer
    x = 105,914.44

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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.