Home / 210,090.40-315,087.54-60,329.50

Finding the Fourth Proportional to 210,090.40, 315,087.54 and 60,329.50

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Solution

The fourth proportional to 210,090.40, 315,087.54 and 60,329.50 is: 90,480.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,090.40 : 315,087.54 = 60,329.50 : x
  2. Step 2: Convert to fraction form
    210,090.40/315,087.54 = 60,329.50/x
  3. Step 3: Cross multiply
    210,090.40x = 315,087.54 × 60,329.50
  4. Step 4: Simplify right side
    210,090.40x = 19,009,073,744.43
  5. Step 5: Solve for x
    x = 19,009,073,744.43/210,090.40
  6. Step 6: Final answer
    x = 90,480.45

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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.