Home / 260,192.03-390,313.98-70,655.46

Finding the Fourth Proportional to 260,192.03, 390,313.98 and 70,655.46

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Solution

The fourth proportional to 260,192.03, 390,313.98 and 70,655.46 is: 105,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,192.03 : 390,313.98 = 70,655.46 : x
  2. Step 2: Convert to fraction form
    260,192.03/390,313.98 = 70,655.46/x
  3. Step 3: Cross multiply
    260,192.03x = 390,313.98 × 70,655.46
  4. Step 4: Simplify right side
    260,192.03x = 27,577,813,801.33
  5. Step 5: Solve for x
    x = 27,577,813,801.33/260,192.03
  6. Step 6: Final answer
    x = 105,990.23

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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.